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Giordon Holtsberg Stark (University of California,Santa Cruz (US))20/05/2019, 09:30
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Andrew James Whitbeck (Texas Tech University (US))20/05/2019, 10:00
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Tao Han (University of Pittsburgh)20/05/2019, 10:50
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Kathryn Zurek (LBNL)20/05/2019, 11:20
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Mirjam Cvetic (University of Pennsylvania)20/05/2019, 11:50
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Kate Scholberg (Duke University)20/05/2019, 12:20
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Dr Da Liu (Argonne National Laboratory)20/05/2019, 14:00
In this talk, I will discuss about the phenomenology of the composite Higgs models at the LHC and future lepton colliders. Spin-1 resonances and the top partners are the smoking gun of the composite Higgs models, their strong interactions will play an important role in the searching for the resonances and cascade decay channels can be important. I will discuss about their prospectives at the...
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Stefan Schacht (Cornell University)20/05/2019, 14:00
We discuss the implications of the recent discovery of CP violation in charm decays at LHCb, and the question if it is physics beyond the Standard Model. Furthermore, we show in which modes to search for charm CP violation next and present U-spin sum rules for CP asymmetries of charmed baryon decays.
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Steven Clark (Texas A&M University - College Station)20/05/2019, 14:00
Dark matter annihilation to a two-body final state is difficult to probe for many models because the dominate annihilation channel is velocity suppressed. The inclusion of gauge boson radiation in these models creates a three-body final state that lifts the suppression, allowing for a velocity-independent cross section that can dominate. This inclusion provides a means to investigate these...
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Susan Shotkin Gascon-Shotkin (Centre National de la Recherche Scientifique (FR))20/05/2019, 14:00
A review of the recent measurements of the SM Higgs couplings and properties will be given, covering both ATLAS and CMS. Whilst it is an overview talk, the speaker can choose a couple of subjects to develop in more details.
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Alexx Perloff (University of Colorado Boulder (US))20/05/2019, 14:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for strong supersymmetric particle production. The results target a variety of gluino and squark production channels with decays to hadronic final states. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Chih-Liang Wu (MIT)20/05/2019, 14:20
Most indirect dark matter searches consider only signals from decay or two-body annihilation. I will discuss the general scenario where more than two dark matter particles participate in the annihilation process. Such processes can be greatly enhanced at low velocities, and generically have different redshift dependence than standard decay/annihilation signals. I will describe and examine the...
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Ethan Neil (University of Colorado, Boulder)20/05/2019, 14:20
In composite Higgs models, relating the many parameters of the low-energy effective theory to the fundamental UV parameters requires dealing with the underlying non-perturbative interactions responsible for compositeness. Lattice field theory calculations allow this connection to be made numerically, giving significant model constraints. I will present several results from a detailed lattice...
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Steven Robertson (McGill University, (CA))20/05/2019, 14:20
Decay modes with two oppositely charged leptons of different flavor correspond to lepton flavor violating (LFV) decays and are essentially forbidden in the Standard Model (SM) because they can occur only through lepton mixing. Decay modes with two leptons of the same charge are lepton-number violating (LNV) decays and are forbidden in the SM. Hence, decays of the form $D^0 \to hh'll’$ provide...
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Nick J Amin (Univ. of California Santa Barbara (US))20/05/2019, 14:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for strong supersymmetric particle production. The results target a variety of gluino and squark production channels with decays to final states with one or more leptons. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Pawel Jan Klimek (Northern Illinois University (US))20/05/2019, 14:30
The status of HH searches at the LHC will be presented, covering both resonant and non-resonant searches. This is an overview talk. However results on some selected topics will be presented with more details,
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John Tamanas (University of California, Santa Cruz)20/05/2019, 14:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
The MSSM provides a natural dark matter candidate and an explanation for the 3.5 sigma discrepancy between experimental measurements of the muon's anomalous magnetic moment and Standard Model predictions. By utilizing Monte Carlo Markov Chains, we reconstruct the probability distribution characterize phenomenologically-motivated and theoretically-sound MSSM configurations that satisfy limits...
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Aidan Grummer (University of New Mexico (US))20/05/2019, 14:40
The ATLAS experiment has performed accurate measurements of mixing and CP violation in the neutral B mesons, and also of rare processes happening in electroweak FCNC-suppressed neutral B-mesons decays.
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This talk will focus on the latest results from ATLAS, such as rare processes: B^0_s → mu mu and B^0 → mu mu, and CPV in Bs to J/psi phi. -
Dr Karol Kovarik (University of Munster)20/05/2019, 14:40
We will present the current results of our analyses of SUSY-QCD corrections to dark
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matter annihilation cross-section in pMSSM scenarios with a light scalar quark of the third generation. Such scenarios are extremely appealing as they have not yet been ruled out by LHC searches and at the same time the lightest Higgs mass in these scenarios is predicted to be consistent with the measured... -
Cristina Ana Mantilla Suarez (Johns Hopkins University (US))20/05/2019, 14:40
Searches for new resonances in di-boson final states (VV, VH, HH, where V = W, Z) with the CMS detector are presented. The results are based on the large dataset collected during Run 2 of the LHC at a centre-of-mass energy of 13 TeV. The analyses are optimised for high sensitivity over a large range in resonance mass. Jet substructure techniques are used to identify hadronic decays of...
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Chiao-Ying Lin (University of Cambridge (GB))20/05/2019, 15:00
The full Run-2 ATLAS results on searches for resonant production of vector (W,Z) are presented, comprising 140fb-1 of data. Searches for such diboson resonances have been performed in final states with different numbers of leptons and jets where new jet substructure techniques to disentangle the hadronic decay products in highly boosted configuration are being used.
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Minho Son (Korea Advanced Institute of Science and Technology (KR))20/05/2019, 15:00
I will talk about a double Higgs production via gluon fusion in the Effective Field Theory (EFT) framework where effects from new physics are parametrized by local operators.
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Pearl Sandick (University of Utah)20/05/2019, 15:00
Dwarf spheroidal galaxies (dSphs) are are exceptionally clean targets for searches for gamma rays from dark matter annihilation. Here, I will discuss a general, model-independent formalism for determining bounds on the production of photons from dark matter annihilation in dSphs. This formalism is applicable to any set of assumptions about dark matter particle physics or astrophysics. As an...
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Kai-Feng Chen (National Taiwan University (TW))20/05/2019, 15:00
We report resent flavor physics results, using pp collision data collected by the CMS experiment at the LHC, including the observation of two excited Bc states, the study of the B->J/Psi Lambda p decay, and a search for charged lepton flavor violating decays tau->3mu. The first analysis is based on an event sample corresponding to a luminosity of 143 fb^-1 at sqrt(s)=13 TeV. The Bc excited...
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Julien Maurer (IFIN-HH (RO))20/05/2019, 15:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Despite the absence of experimental evidence, weak-scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarizes recent ATLAS results on inclusive searches for supersymmetric squarks of the first two generations and gluinos. It covers both R-parity conserving models that predict dark matter candidates and R-parity violating models that...
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Zhenbin Wu (University of Illinois at Chicago (US))20/05/2019, 15:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for supersymmetric stop and sbottom production. A variety of final state decays are considered with an emphasis on targeting difficult to reach kinematic regions. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Agni Bethani (University of Manchester (GB))20/05/2019, 15:20
The discovery of a Higgs boson at the Large Hadron Collider (LHC) motivates searches for physics beyond the Standard Model (SM) in channels involving coupling to the Higgs boson. A search for a massive resonance decaying into a standard model Higgs boson (h) and a W or Z boson or two a standard model Higgs bosons is performed. The results of a search for non-resonant Higgs boson pair...
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Christopher Dessert (University of Michigan)20/05/2019, 15:20
X-ray observations of clusters and galaxies have detected an unexplained X-ray emission line around 3.5 keV. This line has been the subject of many recent works due to its potential explanation as due to decaying dark matter. In particular, sterile neutrinos with a mass of 7 keV and mixing angles of $\sim10^{-10}$ provide a good fit to the data. I discuss recent work in which we exploit the...
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Armine Rostomyan (DESY)20/05/2019, 15:20
The Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^+ e^-$ collider. The design luminosity of the machine is $8\times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to record 50 ab$^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning...
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Johannes Braathen (Osaka University)20/05/2019, 15:20
The precise study of the properties of Higgs boson offers a unique and crucial opportunity to probe Physics beyond the Standard Model (BSM) indirectly. One important example of such property is the Higgs trilinear coupling, which determines the shape of the Higgs potential and in turn the nature of the electroweak phase transition (EWPT). It has been known for some time that, in a variety of...
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Benjamin Lehmann (UC Santa Cruz)20/05/2019, 15:40
Multiple space-borne cosmic ray detectors have detected line-like features in the electron and positron spectra. Most recently, the DAMPE collaboration reported the existence of such a feature at 1.4 TeV, sparking interest in a potential dark matter origin. Such quasi-monochromatic features, virtually free of any astrophysical background, could be explained by the annihilation of dark matter...
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Shufang Su (University of Arizona)20/05/2019, 15:40
Future Higgs factories can reach impressive precision on Higgs property measurements. In this talk, we explore its sensitivity to new physics models at the electron-positron colliders. In particular, we focus on Type-I and Type-II Two Higgs Double Models as illustrative examples. We perform a global fit to various Higgs search channels to obtain the 95 C.L. constraints on the model parameter...
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Lucas Corcodilos (Johns Hopkins University (US))20/05/2019, 15:40
We present results from searches for resonances with enhanced couplings to third generation quarks, based on proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by CMS. The signatures include single and pair production of vector-like quarks and heavy resonances decaying to third generation quarks. A wide range of final states, from multi-leptonic to entirely hadronic is...
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John Kenneth Anders (Universitaet Bern (CH))20/05/2019, 15:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Top or bottom squarks with masses less than or around one TeV can also give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. The talk...
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Dong Su (SLAC National Accelerator Laboratory (US))20/05/2019, 16:20
Searches for Higgs bosons in different extensions of the Standard Model (SM) are presented. These include models with additional scalar singlets, doublets, or triplets, and generic searches for models with couplings modified with respect to the SM or for non-SM Higgs boson decay channels. Results are based on data collected by the ATLAS in 2015 and 2016 at the LHC.
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Mr Marcus Pernow (KTH Royal Institute of Technology)20/05/2019, 16:20
Contrary to SUSY-based GUT models, the gauge couplings in non-SUSY models do not unify naturally. However, gauge coupling unification may still be achieved by intermediate symmetry breaking steps or new physics around the TeV scale. Motivated by this, we perform fits to an SO(10)-based GUT model with one-step symmetry breaking to the SM. Neutrino masses are generated by the type-I or type-II...
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Dr Reddy Pratap Gandrajula (Michigan State University)20/05/2019, 16:20
NOvA is a long-baseline neutrino oscillations experiment designed to precisely measure the neutrino oscillation parameters. We do this by di- recting a beam of predominantly muon neutrinos from Fermilab towards northern Minnesota. The experiment consists of two functionally equiv- alent detectors each located 14.6 mrad off the central axis of Fermilab’s 700 kW NuMI neutrino beam, the world’s...
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Mr Basabendu Barman (IIT Guwahati)20/05/2019, 16:20
Non-abelian vector boson dark matter (DM), although not widely studied, offers very important phenomenological outcome. In this talk, we highlight some possibilities that can be accommodated in an $SU(2)$ extension of the the Standard Model (SM). One important feature of DM of such kind is realized via $t$-channel annihilation for relic abundance and $s$-channel direct search interaction,...
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Dr Tomas Gonzalo (Monash University)20/05/2019, 16:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Supersymmetric models are some of the most popular and well-motivated extensions of the Standard Model, and hence they have been constrained by a vast array of different experimental searches. The diversity of experimental constraints, combined with a large number of parameters, makes the systematic study of SUSY models increasingly complicated and old-school parameter scans are insufficient....
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Mr Félix Napoleón Díaz Desposorio (Pontificia Universidad Católica del Perú)20/05/2019, 16:40
In this work we study the intrinsic CPT violation in the neutrino oscillations phenomena produced by quantum decoherence as sub-leading effect. In the usual representation, we find that only fifteen elements of the decoherence matrix violate the CPT symmetry intrinsically. We find exact solutions for the CPT asymmetry function in vacuum . We define an observable $\mathcal{R}$ to make...
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Dr Yi-Lei Tang (KIAS)20/05/2019, 16:40
In this talk, I will show how to calculate the bound state formation cross section in this model. Unlike the usual calculations, "mono-pole" emission becomes significant, and the process emitting the longitudinal dark photon/Goldstone boson becomes very important in the annihilation processes. I will also show the numerical results.
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Prof. Jason L. Evans (Korea Institute for Advanced Study)20/05/2019, 16:40
Although SUSY is less natural than hoped, it is still able to explain several correlations beyond the standard model. A persistently appealing feature of supersymmetry is that it leads to gauge coupling unification, which suggests that the forces unify. For even minimal supersymmetric SU(5) unification, there are previously unexplored avenues. I will focus on the effect of pushing the...
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Anne-Marie Magnan (Imperial College (GB))20/05/2019, 16:50
The speaker is invited to select 2 or 3 topics amongst the most recent results on exotic Higgs bosons, that will be presented in details.
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Huayang Song20/05/2019, 16:50Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Studying the properties of Higgs boson becomes one important method to explore the physics beyond the Standard Model (SM). In this work, we present studies on the implications of the Higgs precision measurements at future Higgs Factories on the Minimal Supersymmetric Standard Model (MSSM). A multi-variable global fit to various Higgs search channels and also Higgs mass based on both the...
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Mr Sumit Ghosh (Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University)20/05/2019, 17:00
We propose an extension of the Standard Model gauge symmetry by the gauge group U(1)_T3R in order to address the Yukawa coupling hierarchy between the third generation fermions and the first two generation fermions of the SM. We assume that only the right-handed fermions of the first two generations are charged under the U(1)_T3R. In addition to the new dark gauge boson, we have a dark scalar...
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SUDIP JANA (OKLAHOMA STATE UNIVERSITY)20/05/2019, 17:00
We present a novel framework that provides an explanation to the long-standing excess of electronlike events in the MiniBooNE experiment at Fermilab. We suggest a new dark sector containing a dark neutrino and a dark gauge boson, both with masses between a few tens and a few hundreds of MeV. Dark neutrinos are produced via neutrino-nucleus scattering, followed by their decay to the dark gauge...
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Dr Masaki Yamada (Tufts University)20/05/2019, 17:00
A spontaneously broken hidden U(1)_h gauge symmetry can explain both the dark matter stability and the observed relic abundance. In this framework, the light gauge boson can mediate the strong dark matter self-interaction, which addresses astrophysical observations that are hard to explain in collisionless cold dark matter. Motivated by flavoured grand unified theories, we introduce...
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Andrew Miller (University of Minnesota)20/05/2019, 17:10Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Supersymmetric models are subject both to direct constraints from collider searches and to indirect limits from electroweak observables such as the Higgs mass and flavor-changing processes. A minimal scenario consistent with current experimental data suggests a supersymmetric spectrum with a split sfermion sector. Such a spectrum can naturally be realized when partial compositeness is used to...
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Prof. Joshua Spitz (University of Michigan)20/05/2019, 17:20
The discovery of a light sterile neutrino would have profound implications for particle physics, astrophysics, and cosmology. A number of anomalous neutrino measurements at short distances may be indicative of the active neutrinos mixing to at least one sterile flavor. A worldwide program, involving reactor, source, and accelerator-based experiments is currently underway and searching for...
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Prof. Nobuchika Okada (University of Alabama)20/05/2019, 17:20
The Grand Unified Theory (GUT) is a very interesting paradigm beyond the Standard Model. However, in simple GUT models, there are still missing pieces, such as neutrino masses, cosmological inflation, and a dark matter candidate. In this talk, I will discuss simple GUT models in which these missing pieces are supplemented.
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Dr Subhaditya Bhattacharya (IIT Guwahati)20/05/2019, 17:20
Multipartite dark sector has several motivations, one of the key issues being to evade stringent direct search bound. In this talk, we highlight some interesting phenomenological features of having two component dark matter models constituted of scalar-scalar or scalar-fermion dark matter, where the interaction between the dark matter components not only yields a larger available parameter...
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Dr Nausheen Shah (Wayne State University)20/05/2019, 17:20
Many BSM models, including SUSY, include extra scalars. A particularly well motivated model is the NMSSM and its corresponding 2HDM+S Higgs sector. I will discuss the challenges and opportunities presented for LHC searches due to the presence of such an extended Higgs sector.
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Yicong Sui (Washington University in Saint Louis)20/05/2019, 17:30Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We propose a simultaneous explanation of two recent anomalous observations at very different energy scales. The first one concerns hints of lepton flavor universality violation in rare B-meson decays, as observed by LHCb, and to some extent, by Belle and BaBar. The second anomaly is the observation made by the ANITA balloon experiment of two EeV upgoing air showers. Both these observations are...
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Prof. Brooks Thomas (Lafayette College)20/05/2019, 17:40
Dynamical Dark Matter (DDM) is an alternative framework for dark-matter physics in which the dark sector consists of large ensembles of dark states which exhibit a broad range of masses and lifetimes. While some of the states in this ensemble must be sufficiently long-lived that they contribute to the dark-matter abundance at present time, other states in the ensemble may have far shorter...
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shaikh saad (oklahoma state university)20/05/2019, 17:40
Simple ways of implementing Peccei-Quinn (PQ) symmetry to solve the strong CP problem in renormalizable SUSYSO(10) models with a minimal Yukawa sector is suggested. Realistic fermion mass generation requires that a second pair of Higgs doublets survive down to the PQ-scale. How unification of gauge couplings can be achieved in this context is demonstrated. Higgsino mediated proton decay rate...
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Dr Jayden Newstead (Arizona State University)20/05/2019, 17:40
The field of coherent elastic neutrino-nucleus scattering (CEvNS) has grown immensely in recent years. In this talk I will provide an overview of the field, summarizing the running experiments, phenomenological implications and theoretical challenges. With the first detection made by COHERENT in 2017, the goal is now to make more precise measurements using a diverse set of target nuclei and...
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Antonio Morais (University of Aveiro)20/05/2019, 18:00
We present a Grand Unified Theory where the usual $E_6$ gauge coupling unification is supplemented by a local $SU(2)_F \times U(1)_F$ family symmetry. We discuss its origin inspiring our model by an embedding into $E_8$ which can be seen as an unifying force. We argue that the presence of such a family symmetry has remarkable implications for both high-scale and low scale physics: First,...
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Cem Eröncel (Syracuse University)20/05/2019, 18:00
The Randall-Sundrum models provide an appealing foundation to engineer BSM models, especially the ones which attempts to explain the small Higgs mass. The modulus field in these models (the "radion") should play a role in determining the value of the Higgs vacuum expectation value (VEV), and vice versa, as the Higgs VEV itself should backreact on the geometry. This would imply that the Higgs...
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Dr Lucien Heurtier (University of Arizona)20/05/2019, 18:00
We explore the possibility that the relic abundance of dark matter is generated in a context where the inflaton is the only mediator between the visible and the hidden sectors of our universe. Due to the relatively large mass of the inflaton field suggested by large-field inflation scenarios, such a portal leads to an extremely feeble interaction between the dark sector and the Standard Model...
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Steve F. King21/05/2019, 08:30
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Carsten Rott (Sungkyunkwan University)21/05/2019, 09:00
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Tracy Slatyer21/05/2019, 09:30
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Peter Graham21/05/2019, 10:00
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Howard Baer (University of Oklahoma)21/05/2019, 10:50
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Keith A. Olive (University of Minnesota (US))21/05/2019, 11:20
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Dimitri Nanopoulos (University of Texas (US))21/05/2019, 11:50
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Goran Senjanovic21/05/2019, 12:20
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Prof. Howard Baer (University of Oklahoma)21/05/2019, 14:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
SUSY with weak scale soft breaking terms is highly motivated theoretically and is also supported by a variety of measured virtual effects. The question is: where are the sparticles and where are the WIMPs? A more nuanced view of naturalness can
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reconcile TeV-scale soft terms and mh=125 GeV with naturalness but where now only the higgsinos need lie close to the weak scale while top-squarks may... -
Mr Shengchao Li (Virginia Tech)21/05/2019, 14:00
Neutrinos emitted nuclear reactors have played an important role for both discovery and measurement in the history of neutrino physics. The short baseline reactor neutrino experiments, Daya Bay, Double Chooz, and RENO, have brought neutrino physics into the precision era. The next generation medium baseline reactor neutrino experiments JUNO will explore the neutrino mass hierarchy and other...
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Paul Terman (Texas A&M University)21/05/2019, 14:00
The question of the nature of dark matter has become increasingly puzzling as more experiments exclude larger portions of the favored WIMP parameter space. Previous theoretical work has suggested the existence of Lightly Ionizing Particles (LIPs) with charge e·f, where e is the electron charge and f < 1. At least a part of the dark matter could consist of these LIPs. We seek to utilize data...
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Rashmish Mishra (Scuola Normale Superiore, Pisa and INFN Pisa, Italy)21/05/2019, 14:00
Simple generalizations of well known BSM scenarios can lead to dramatic signals at colliders, providing interesting theoretical playgrounds and motivating new methods to isolate non-standard experimental signals. In this talk, I will consider warped extra-dimensional models with multiple branes in the IR and discuss the theoretical possibilities and related collider signals. The resulting...
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Fariha K. Vardag21/05/2019, 14:00
In $\mu$-hybrid inflation a nonzero inflaton vacuum expectation value induced by supersymmetry breaking is proportional to the gravitino mass $m_{3/2}$, which can be exploited to resolve the minimal supersymmetric standard model $\mu$ problem. We show how this scenario can be successfully implemented with $m_{3/2} \sim 1-100$ TeV and reheat temperature as low as $10^6$ GeV by employing a...
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Dennis Foren (Michigan State University)21/05/2019, 14:20
Massive spin-2 particles cause trouble in 4D quantum field theory: not only are their tree-level matrix elements sometimes complicated, but some diagrams grow like ten powers of incoming energy! As a result, these theories violate unitarity even at small energy scales. However, massive spin-2 particles naturally appear when projecting nicely-behaved higher-dimensional models down to 4D. If...
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Ms Dibya Chakraborty (PhD student of University of Guanajuato)21/05/2019, 14:20
Given the ongoing debate by Vafa et al on inflation and the swampland, I will discuss a multifield D-brane model of inflation consistent with observational bounds. We study the model, which was previously been done as a single field, by focusing on the multifield cosmological evolution of a probe D5 brane moving in both radial and angular directions in the Warped Resolved Conifold (WRC) throat...
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Bryce Littlejohn (Illinois Institute of Technology)21/05/2019, 14:20
Current models of antineutrino production in nuclear reactors predict absolute detection rates and energy spectra at odds with the existing body of direct reactor antineutrino measurements. If these discrepancies are taken seriously, then they must be indicative of a misunderstanding of neutrino production in nuclear reactor cores and/or the fundamental properties of neutrinos. New...
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Andrew Michael Kubik (Texas A&M University (US))21/05/2019, 14:20
There is strong evidence that $\sim27\%$ of the energy density of our universe is composed of a dark matter component which has been inferred by observing its gravitational effects. Many well motivated models predict candidate particles with mass below 10 GeV which offer compelling solutions to the dark matter mystery but have yet to be experimentally detected. The Super Cryogenic Dark...
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David W. Miller21/05/2019, 14:30Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Charginos and neutralinos are typically the lightest new particles predicted by a wide range of supersymmetry models, and the lightest neutralino is a well motivated and studied candidate for dark matter in models with R-parity conservation. The talk presents recent results from searches for pair produced charginos and neutralinos in final states with leptons and missing transverse momentum....
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Marcos A. Garcia Garcia (Rice University)21/05/2019, 14:40
There is no guarantee that the reductionist point of view championed by simple effective field theories is realized during inflation and the subsequent (p)reheating. In fact, many supersymmetric and string-inspired UV completions of inflation involve a myriad of fields with complicated interactions. This may lead to a random, chaotic evolution as a function of the initial conditions and values...
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Christopher Verhaaren (University of California, Davis)21/05/2019, 14:40
The evidence for dark matter is overwhelming, but its nature is unknown. Dark matter can be composed of the magnetic monopoles of a hidden sector, which acquire small coupling to the visible photon through kinetic mixing. When the hidden sector U(1) is broken, the monopoles confine, connected by a tube of magnetic flux. These flux tubes give rise to phase shifts in Aharanov-Bohm experiments. I...
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Leslie Rogers (University of Texas in Arlington)21/05/2019, 14:40
The NEXT collaboration is developing a sequence of high pressure xenon gas time projection chambers with the aim of creating a ton-scale, very low background neutrinoless double beta decay search. Finding evidence of neutrinoless double beta decay would give insight into the origins of the matter-antimatter asymmetry in the universe, the smallness of neutrino mass, and the symmetry structure...
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Luigi Corona (Pisa University)21/05/2019, 14:40
The Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^+ e^-$ collider. The design luminosity of the machine is $8\times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to record 50 ab$^{-1}$ of data, a factor of 50 more than its predecessor. From February to July of this year, the machine has completed a...
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Keith Ulmer (University of Colorado, Boulder (US))21/05/2019, 14:50Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for supersymmetric electroweak gauge bosons and for direct production searches for supersymmetric lepton partners. A variety of electroweak production channels are considered with results presented for different final state decays. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector...
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Arindam Das (Osaka University), Dr Sanjoy Mondal (IMSC, India)21/05/2019, 15:00
The existence of tiny neutrino masses and flavor mixings can be explained naturally in various seesaw models, many of which typically having additional Majorana type SM gauge singlet right handed neutrinos ($N$). If they are at around the electroweak scale and furnished with sizable mixings with light active neutrinos, they can be produced at high energy colliders such as LHC and ILC. A...
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Mrs Kim Berghaus (Johns Hopkins University)21/05/2019, 15:00
"Warm inflation is an interesting alternative implementation of a period of accelerated expansion and reheating in the early universe. It turns out to be easy to have a concurrent quasi-thermal radiation bath if energy is extracted from the rolling scalar field via friction. The benefits of warm inflation include automatic reheating at the end of inflation when the thermal bath begins to...
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Christopher John Parkinson21/05/2019, 15:00
The features of the NA62 experiment at the CERN SPS – high-intensity setup, trigger-system flexibility, high-frequency tracking of beam particles, redundant particle identification, and ultra-high-efficiency photon vetoes – make NA62 particularly suitable to search for long-lived, weakly-coupled particles within Beyond the Standard Model physics, using kaon and pion decays as well as operating...
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Dr Carlos Escobar (Instituto de Física UNAM)21/05/2019, 15:00
We study CPT and Lorentz violation in the tau-lepton sector of the Standard Model in the context of the Standard-Model Extension, described by a coefficient which is thus far unbounded by experiment. We show that any non-zero value of this coefficient implies that, for sufficiently large energies, standard-model fermions become unstable against decay due to the emission of a pair of...
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Douglas Tuckler (UC Santa Cruz)21/05/2019, 15:10Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Electroweak sectors of beyond the Standard Model theories can contain several new degrees of freedom that are lighter than the 125 GeV Higgs boson, and hidden to present LHC searches. One example is the Next-to-Minimanl Supersymmetric Standard Model (NMSSM) augmented with a Peccei-Quinn (PQ) symmetry. In this talk we highlight many new signatures arising from this model that can be looked for...
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Shirley Li (SLAC)21/05/2019, 15:20
We show that the Deep Underground Neutrino Experiment (DUNE) has the potential to deliver world-leading results in solar neutrinos. With an exposure of 100 kton-year, DUNE could detect 10^5 signal events above 5 MeV electron energy. Separate precision measurements of neutrino-mixing parameters and the 8B flux could be made using two detection channels and the day-night effect. New particle...
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Chang Sub Shin (Institute for Basic Science )21/05/2019, 15:20
An axion-like particle (ALP) offers a new direction in electroweak baryogenesis because the periodic nature enables it to trigger a strong first-order phase transition even if it is weakly coupled to the Higgs sector. This is essentially because the axion periodicity naturally allows the structure of phase transition to be insensitive to the axion decay constant that determines the strength of...
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Devin Walker (Dartmouth University)21/05/2019, 15:20
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Sonia Carra (Deutsches Elektronen-Synchrotron (DE))21/05/2019, 15:30Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Many supersymmetry models feature gauginos and sleptons with masses less than a few hundred GeV. These can give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. The talk presents recent ATLAS results from searches for slepton pair production.
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Dr Shih-Kai Lin (Colorado State University)21/05/2019, 15:40
Current and future experiments aimed at making precision measurements of neutrino properties require better understanding of neutrino interactions with the nucleus to achieve their ultimate sensitivities. The NOvA (NuMI Off-axis $\nu_e$ Appearance) experiment is a long-baseline neutrino oscillation experiment designed to observe neutrinos in Fermilab's NuMI (Neutrinos at the Main Injector)...
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Sezen Sekmen (Kyungpook National University (KR))21/05/2019, 16:20
An analysis description language (ADL) is a human readable declarative language that unambiguously describes the contents of an analysis in a standard way, independent of any computing framework. Adopting ADLs would bring numerous benefits for the LHC experimental and phenomenological communities, in particular for beyond the standard model physics analyses, ranging from analysis preservation...
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Masahiro Yamatani (Tokyo ICEPP)21/05/2019, 16:20Machine Learning, Big Data and Quantum InformationOral
As we probe higher energy scales of potential new physics the boost of Standard Model particles can be extremely high. When these decay hadronically their decay products are boosted and therefore collimated such that they can be reconstructed a single large-radius jets with distinctive internal structure. The process of calibrating these jets will be described. Additionally innovative...
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Tathagata Ghosh (University of Hawaii at Manoa)21/05/2019, 16:20
The Higgs boson was postulated as a key component of the Standard Model (SM) of particle physics to explain the origin of mass. After 45 years of rigorous experimental searches, the Higgs boson was finally discovered on July 4th, 2012 at the CERN Large Hadron Collider (LHC). The discovery of the Higgs boson completes the SM and confirm one of its most mysterious predictions. The SM, although...
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Prof. Diego Restrepo (Universidad de Antioquia)21/05/2019, 16:20
Neutrinos may be Dirac particles whose masses arise radiatively at one-loop, naturally explaining their small values. In this work we show that all the one-loop realizations of the dimension-five operator to effectively generate Dirac neutrino masses can be implemented by using a single local symmetry: $𝑈(1)_{𝐵−𝐿}$. Since this symmetry is anomalous, new chiral fermions, charged under $𝐵−𝐿$,...
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Dr maekawa nobuhiro (nagoya univ. KMI)21/05/2019, 16:20
In natural GUT, most of problems in SUSY GUT can be solved under natural assumption in which all interactions including higher dimensional interactions
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are introduced with O(1) coefficients. Interestingly, small deviation from
the complete natural GUT makes spontaneous SUSY breaking possible. We study the possibility that axino becomes the LSP in this scenario. -
Sven Heinemeyer (CSIC (Madrid, ES))21/05/2019, 16:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We review the predictions of the favored SUSY parameter spaces. They are based on fits to all relevant experimental data. The implications of these predictions for the HL-LHC and ILC/CLIC are discussed.
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Emanuele Usai (Brown University (US))21/05/2019, 16:40Machine Learning, Big Data and Quantum InformationOral
From particle identification to the discovery of the Higgs boson, neural network algorithms have become an increasingly important tool for data analysis at the Large Hadron Collider. We present a novel approach to event and particle identification, called end-to-end deep learning, that combines deep learning image classification algorithms with low-level detector representation. Using two...
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Bibhushan Shakya (UC Santa Cruz)21/05/2019, 16:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We will discuss baryogenesis via a gaugino portal, the supersymmetric counterpart to the widely studied kinetic mixing portal, to a hidden sector. We will examine this mechanism within various scenarios, including freeze-in or freeze-out of the hidden sector gaugino, as well as extended frameworks where the hidden sector contains a weakly interacting massive particle (WIMP) dark matter...
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Keisuke Harigaya (Institute for Advaned Study)21/05/2019, 16:40
Precise measurements of the standard model parameters by the LEP has shown that supersymmetry realizes precise coupling unification. We introduce a non-supersymmetric scheme of coupling unification via the Higgs parity and show how precise unification is realized. We discuss the prediction on the proton decay rate and the importance of the precise measurement of the standard model parameters....
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Hasan Serce21/05/2019, 16:40
We present experimental implications of lepton flavor-violating processes within a supersymmetric type-I seesaw framework in three-extra-parameter non-universal Higgs model (NUHM3) where right handed neutrinos act as the source of lepton flavor violation. Our numerical analysis includes full 2-loop renormalization group running effects for the three neutrino masses and mass matrices. We show...
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David Miller (University of Chicago (US))21/05/2019, 16:40
In this talk, we present measurements of jet substructure quantities and jet fragmentation properties using data collected by the CMS and ATLAS experiment. These measurements are significant not only for probing a new regime of QCD at a hadron collider, but also for improving the understanding of the internal properties of jets that are used in SUSY searches.
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Andrei Angelescu (University of Nebraska-Lincoln)21/05/2019, 16:40
Despite the vast literature on first order Electroweak Phase Transitions (EWPT), which can provide the necessary conditions for generating the Baryon Asymmetry in the Universe, fermion-induced EWPTs still remain a rather uncharted territory. In this talk, we consider a simple fermionic extension of the Standard Model (SM) involving one $ SU(2)_L$ doublet and two singlet Vector-Like Leptons...
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Sven Heinemeyer (CSIC (Madrid, ES))21/05/2019, 17:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We present the predictions for the properties of DM based on LHC searches and all other relevant constraints. This is done in Supersymmetric models as well as in Simplified Models.
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Mr Navin McGinnis (Indiana University)21/05/2019, 17:00
In the MSSM extended by a complete vectorlike family, precise top, bottom and tau Yukawa coupling unification can be achieved assuming SUSY threshold corrections which are typical for comparable superpartner masses. Furthermore, the unification is possible with a large unified coupling, implying that all three fermion masses can be simultaneously close to their IR fixed points. Assuming...
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Savvas Koushiappas (Brown University)21/05/2019, 17:00
I will discuss how late universe dark matter decays to a massive and a massless daughter particles can relieve the tension between measurements of the Hubble parameter in the local universe and at the CMB.
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Juan Carlos (Universidad Técnica Federico Santa María)21/05/2019, 17:00
Abstract:
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We assess the sensitivity of the LHC, its high energy upgrade, and a prospective 100 TeV hadronic collider to the Dirac Yukawa coupling of the heavy neutrinos in left-right symmetric models (LRSMs). We focus specifically on the trilepton final state in regions of parameter space yielding prompt decays of the right-handed gauge bosons (WR) and neutrinos (NR). In the minimal LRSM, the... -
Mr Christian Weber (Yale University)21/05/2019, 17:00Machine Learning, Big Data and Quantum InformationOral
The proposed link between quantum entanglement and the
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apparent thermalization in particle production at the Large
Hadron Collider (Rev. D 98, 054007 (2018)) will be presented.
The large amount of collected data at 13 TeV center of mass
energy in proton-proton collisions has enabled this initial
systematic study of the relationship between Quantum Information
Science and particle... -
Zachary Louis Marshall (Lawrence Berkeley National Lab. (US))21/05/2019, 17:00
Searches for long-lived particles have garnered increased attention in recent years, demanding the development of more complex Monte Carlo simulation methods. The ATLAS experiment has recently updated its infrastructure for the generation, simulation, and in-flight decays of R-hadrons, some of the most complex long-lived SUSY states to model. In this talk, the tools and configuration that are...
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Prof. Joel Walker (Sam Houston State University)21/05/2019, 17:20
AEACuS is a software package for the computation of collider event statistics and the application of event selection cuts. It interfaces with the LHCO format output of the popular detector simulation packages Delphes. A compact and powerful card file syntax unambiguously separates reusable user instructions from the code library. Support for most event discriminants employed by ATLAS and...
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Kaladi Babu (Oklahoma State University)21/05/2019, 17:20
In models of radiative neutrino neutrino masses, new scalar bosons that generate the masses can also induce significant nonstandard neutrino interactions (NSI). In this talk I will present our results of a comprehensive analysis of NSI in such models. Diagonal NSIs of orderr several percent are found to be possible, esepcially in the Zee model that utilizes charged scalars. Tests of this...
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Dr Rajendra Gupta (Macronix Research Corporation)21/05/2019, 17:20
We have developed a cosmological model by allowing the speed of light c, gravitational constant G and cosmological constant Λ in the Einstein filed equation to vary in time, and solved them for Robertson-Walker metric. Assuming the universe is flat and matter dominant at present, we obtain a simple model that can fit the supernovae 1a data with a single parameter almost as well as the standard...
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Tianjun Li (Chinese Academy of Sciences)22/05/2019, 08:30
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Bhupal Dev (Washington University in St. Louis)22/05/2019, 09:00
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Shu Li (Tsung-Dao Lee Institute (CN) & Shanghai Jiao Tong Univ. (CN))22/05/2019, 09:30
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John Stupak (University of Oklahoma (US))22/05/2019, 10:00
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Maxim Pospelov22/05/2019, 10:50
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David Curtin (University of Toronto)22/05/2019, 11:20
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Jonathan Lee Feng (University of California Irvine (US))22/05/2019, 11:50
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Steven Robertson (McGill University, (CA))22/05/2019, 12:20
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William Balunas (University of Oxford (GB))22/05/2019, 14:00
The presence of a non-baryonic dark matter component in the Universe is inferred from the observation of its gravitational interaction. If dark matter interacts weakly with the Standard Model it would be produced at the LHC, escaping the detector and leaving a large missing transverse momentum as their signature. The ATLAS detector has developed a broad and systematic search program for dark...
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Sven Heinemeyer (CSIC (Madrid, ES))22/05/2019, 14:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
we first briefly review the recent progress in the calculation of the MSSM Higgs-boson masses. The new and improved calculations are then applied to several GUT-based and low-energy scenarios. The impact of the improved Higgs-boson mass calculation on the preferred parameter space(s) is analyzed.
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Dr Julian Heeck (UC Irvine)22/05/2019, 14:00
The lepton flavor symmetries of the Standard Model are clearly broken in neutrino oscillations, yet we have not observed any charged-lepton flavor violation. I will review the connection between neutrino masses and flavor violation in some popular models and highlight the importance and complementarity of different experimental search channels.
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Can Kilic (University of Texas at Austin)22/05/2019, 14:00
The Twin Higgs mechanism can address the naturalness problem without introducing partner particles that are produced at colliders with a large cross section. Only the scalar modes and optionally the twin hypercharge gauge boson have direct couplings to the Standard Model states and are therefore the first modes that can be accessed at colliders. We comment on measurements that can be performed...
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Youngjoon Kwon (Yonsei University)22/05/2019, 14:20
The electroweak penguin B decay process b → s l+ l- is a flavour changing neutral current process, and is sensitive to New Physics because of the possible contribution
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of the heavy particles in the loop. Recently, Belle and LHCb obtained interesting results, where the lepton flavor universality violation effects might be seen.
We report our new measurement of R(K) and R(K*), the branching... -
Dr Francisco de Anda (Tepatitlán's Institute for Theoretical Studies)22/05/2019, 14:20
Flavour, SUSY and GUTs are some of the best motivated BSM symmetries, although it is hard to make them work together consistently. It is shown how through Extra Dimensions we can greatly simplify the flavour alignment process. We show different mechanisms to obtain the flavour symmetries and highly predictive flavon alignments, such as CSD3 and the TBM, through different orbifolds.
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Soham Bhattacharya (Tata Inst. of Fundamental Research (IN)), Keith Ulmer (University of Colorado, Boulder (US))22/05/2019, 14:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for supersymmetric particle production with tau leptons in the final state. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Fernandez Manteca Pedro (Univ. of Cantabria)22/05/2019, 14:20
Searches for dark matter in various final states with invisible particles recoiling against standard model particles are presented. Various topologies and kinematic variables are explored, as well as jet substructure as a means of tagging heavy bosons. The focus of the talk is on the recent CMS results obtained using data collected in the LHC run 2.
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Pouya Asadi (Rutgers University)22/05/2019, 14:20
We present an ultraviolet extension of the Twin Higgs in which the radial mode of twin symmetry breaking is itself a pseudo-goldstone boson. This “turtle” structure raises the scale of new colored particles in exchange for additional states in the Higgs sector, making multiple Higgs-like scalars the definitive signature of naturalness in this context. We explore the parametrics and...
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Joshua Berger (University of Pittsburgh)22/05/2019, 14:40
Several models of the dark sector beyond the minimal Weakly Interacting Massive Particle paradigm are accessible at current and upcoming neutrino experiments. I present two well-motivated models to which the experiments at Fermilab are sensitive: boosted dark matter and the Higgs portal. Several regions of hadronically interacting boosted dark matter parameter space will be accessible to...
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Dr Michele Lucente (CP3-UCL)22/05/2019, 14:40
The addition of right-handed neutrino fields to the SM field content provides a minimal and viable solution to account for the observed neutrino masses and lepton mixing. Remarkably, the very same extension contains all the necessary ingredients to account for the observed BAU as well. In this talk I will focus on the possibility that the right-handed neutrinos have masses below the EW scale,...
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Youngjoon Kwon (Yonsei University)22/05/2019, 14:40
Indications for lepton flavour universality violation in the mode B -> D(*) tau nu have been of interest and can be a hint for the New Physics effect.
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We report a new measurement on R(D) and R(D*), branching ratio of B -> D(*) tau nu over B -> D(*) l nu where l = e, mu, using semi-leptonic tag method.
We also report our new measurement on B -> mu nu, which is also sensitive to New... -
Jack Setford (University of Sussex)22/05/2019, 14:40
Mirror sectors -- hidden sectors that are approximate copies of the Standard Model -- are a generic prediction of many models, notably the Mirror Twin Higgs model. Such models can have a rich cosmology and many interesting detection signatures beyond the realm of colliders. In this talk, I will focus on the possibility that mirror matter can form stars which undergo mirror nuclear fusion in...
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Alberto Cervelli (Universita e INFN, Bologna (IT))22/05/2019, 14:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
The search for weak-scale SUSY is one of the highest physics priorities for the current and future LHC runs. The high luminosity upgrade of the LHC (HL-LHC) is expected to deliver proton-proton collisions at a centre-of-mass-energy of 14 TeV, with an integrated luminosity of around 3000 fb-1. The large dataset expected at the end of HL-LHC offers an unprecedented discovery potential for...
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Peiwen Wu (Korea Institute for Advanced Study (KIAS))22/05/2019, 15:00
Some interpretations of $R_{D^{(*)}}$ anomaly in $B$ meson decay using leptoquark models can also generate top quark decays through flavor changing neutral current (FCNC). In this work we focus on two leptoquarks, i.e. scalar $S_1$ and vector $U_1$ which are both singlet under the $SU(2)_L$ gauge group in the Standard Model (SM). We investigate their implications on top FCNC decays $t\to c...
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Jia Liu (University of Chicago)22/05/2019, 15:00
We explore the physics potential of using precision timing information at the LHC in searches for long-lived particles (LLPs). In comparison with the light Standard Model particles, the decay products of massive LLPs arrive at detectors with time delays around nanosecond scale. We propose new strategies to take advantage of this time delay feature by using initial state radiation to timestamp...
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Ivan Lepetic (Illinois Institute of Technology)22/05/2019, 15:00
Millicharged particles (mCPs) are theoretical particles with fractional electric charge, which could constitute part of the dark matter present in the Universe and can naturally arise in dark sectors with U(1)' gauge symmetries. We report the latest constraints to the parameter space of mCPs using data from ArgoNeuT, a 0.24 ton Liquid Argon Time Projection Chamber (LArTPC), with a novel...
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Dr Cedric Weiland (University of Pittsburgh)22/05/2019, 15:00
Heavy neutral leptons are part of many extensions of the Standard Model, in particular seesaw models that can explain the light neutrino masses and mixing. Many search strategy have been proposed, either via the direct production of the new heavy neutral leptons or via their indirect effects in processes like lepton flavour violation. We will discuss a direct search strategy at hadron...
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Anadi Canepa (Fermi National Accelerator Lab. (US)), Dr Anadi Canepa (Fermilab)22/05/2019, 15:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
The proposed 100 TeV pp collider (FCC-hh) is designed to collect a total luminosity of 20/ab providing an un-precedented discovery opportunity for physics beyond the Standard Model. This presentation focuses on the
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prospects for discovering supersymmetry at the future circular proton-proton collider. -
Pouya Asadi (Rutgers University)22/05/2019, 15:20
The $R_{D^{(*)}}$ anomalies are among the longest-standing and most statistically significant hints of physics beyond the Standard Model. In this talk, we investigate future measurements at Belle II that can be used to tell apart the various new physics scenarios for these anomalies. We show that Belle II can use a number of $\tau$ asymmetry observables (forward-backward asymmetry and...
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So Chigusa (University of Tokyo)22/05/2019, 15:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
There are many models beyond the standard model which include electroweakly interacting massive particles (EWIMPs), often in the context of the dark matter. We study the indirect search of EWIMPs using a precise measurement of the lepton pair production cross sections at future 100 TeV hadron colliders. It is revealed that this search strategy is suitable in particular for Higgsino and that...
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James Dent (James)22/05/2019, 15:20
I will be discussing constraints on light dark matter and the effects of the astrophysical neutrino background. This will include a discussion of bremsstrahlung, the Migdal effect, and dark matter scattered by cosmic rays, as well as the effect of these processes on the background induced by coherent elastic neutrino-nucleus scattering.
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127. Neutrino masses from Planck-scale lepton number breaking in models with multiple Higgs doubletsMr Johannes Herms (TU Munich)22/05/2019, 15:20
We explore how the observed characteristics of neutrino masses —small mass scale, mild hierarchy, large mixing angles— can be explained in a simple extension of the standard model, where lepton number is broken at the Planck-scale.
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While the correct mass scale for the light neutrinos is naturally explained in this model without the need for a new scale in the theory, the mild hierarchy can be... -
Zoltan Gecse (Fermi National Accelerator Lab. (US))22/05/2019, 15:20
The CMS detector explores a wide range of non-standard signatures including displaced and delayed particles, which allow to explore various models from supersymmetry and beyond standard models. Newly set limits on long-lived exotic particles will be presented. These results are obtained with data recorded in proton-proton collisions at sqrt(s) = 13 TeV in Run 2 of the LHC.
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Gowri Kurup (Cornell University)22/05/2019, 15:40
The Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. We study the simplest CW neutrino model, the "uniform" clockwork, as well as a broader class of "generalized" clockwork models. We derive constraints on such models from lepton-flavor violating processes, as well as precision electroweak fits. These constraints...
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Jacopo Pinzino22/05/2019, 15:40
The NA62 experiment at CERN SPS was designed to measure BR(K+ -> pi+ nu nu-bar) with in-flight decays, a novel technique for this channel. NA62 took its first physics data in 2016, reaching the sensitivity to the decay at the Standard Model BR. The experiment collected 10 times more statistics in 2017 and a similar amount of data is expected from the 2018 run.
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The final result on K+ to pi+ nu... -
Christophe Clement (Stockholm University (SE))22/05/2019, 15:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Many supersymmetric scenarios feature final states with non-standard final state objects. The production of massive sparticles can lead to the production of boosted top quarks or vector bosons, high-pt b-jets. At the same time, transitions between nearly mass-degenerate sparticles can challenge the standard reconstruction because of the presence of very soft leptons or jets (including the...
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Cristiano Alpigiani (University of Washington, Seattle)22/05/2019, 15:40
Various theories beyond the Standard Model predict unique signatures which are difficult to reconstruct and for which estimating the background rates is also a challenge. Signatures from displaced decays anywhere from the inner detector to the muon spectrometer, as well as those of new particles with fractional or multiple value of the charge of the electron or high mass stable charged...
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Volodymyr Takhistov22/05/2019, 15:40
Super-Kamiokande is world's largest water Cherenkov experiment, with physics studies broadly ranging from probing theories of unification with proton decay to neutrino interactions and astrophysics. Upcoming near-future upgrade of the experiment with dissolution of gadolinium will open a new window into supernovae physics. In particular, potential first detection of supernovae relic neutrinos...
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Kang Sin Choi (Ewha Womans University)22/05/2019, 16:20
We study the global structure of vacua of heterotic strings compactified on orbifolds T^4/Z_N in the presence of heterotic 5-branes. Gauge symmetry breaking associated with orbifold is described by instantons in the field theory. Phase transition between small instantons and heterotic 5-branes provides top-down, stringy account to the spectrum and modular invariance condition. Also it takes us...
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Dr Kyu Jung Bae (Institute for Basic Science)22/05/2019, 16:20
We consider a model of decaying axino-like particle dark matter with lifetime around the age of the universe. Its late decay to gravitino plus axion-like particle can solve small scale problems. We will also show a distinct signature of the axion-like particle from the axino-like particle decay.
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Joshua Lin22/05/2019, 16:20Machine Learning, Big Data and Quantum InformationOral
High-multiplicity all-hadronic final states are an important, but difficult final state for searching for physics beyond the Standard Model. A powerful search method is to look for large jets with accidental substructure due to multiple hard partons falling within a single jet. One way for estimating the background in this search is to exploit an approximate factorization in quantum...
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Van Mayes (University of Houston - Clear Lake)22/05/2019, 16:20
The correct quark and charged lepton mass matrices along with a nearly correct CKM matrix may be naturally accomodated in a Pati-Salam model constructed from intersecting D6 branes on a $T^6/(Z_2 \times Z_2)$ orientifold. Furthermore, near-tribimaximal mixing for neutrinos may arise naturally due to the structure of the Yukawa matrices in the model. Consistency with the quark and charged...
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Stephen Martin (Northern Illinois University)22/05/2019, 16:20
I will discuss the precision determination of the MSbar parameters of the Standard Model and their relation to observable quantities such as the top, Higgs, Z, and W pole masses at full 2-loop order with higher-order QCD effects. I describe a new computer program SMDR, which incorporates all of the known higher loop order effects. The program includes, for the first time, the relation of the...
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Silvia Nagy (University of Nottingham)22/05/2019, 16:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
It is known that de Sitter solutions in supergravity require supersymmetry breaking. I will present a new construction that allows the inclusion of the goldstino into supergravity, based on applying the Stueckelberg trick to a novel superfield formulation of unimodular supergravity. I will show the existence of de Sitter solutions and also the connection to the Volkov-Akulov model in the flat...
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Dr Jeff Kost (Institute of Basic Science)22/05/2019, 16:40
We show that both the baryon asymmetry of the universe and dark matter (DM) can be accounted for by the dynamics of a single axion-like field. In this scenario, the observed baryon asymmetry is produced through spontaneous baryogenesis—driven by the early evolution of the axion—while its late-time coherent oscillations explain the observed DM abundance. Typically, spontaneous baryogenesis via...
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Dibyashree Sengupta (University of Oklahoma)22/05/2019, 16:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Particle physics models with Peccei-Quinn (PQ) symmetry breaking as a consequence of supersymmetry (SUSY) breaking are attractive in that they solve the strong CP problem with a SUSY DFSZ-like axion, link the SUSY breaking and PQ breaking intermediate mass scales and can resolve the SUSY $\mu$ problem with a naturalness-required weak scale $\mu$ term whilst soft SUSY breaking terms inhabit the...
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Eduardo Peinado (Universidad Nacional Autonoma de Mexico)22/05/2019, 16:40
Neutrino masses and the existence of non-baryonic Dark Matter (DM) are together with the Baryon asymmetry in the Universe three evidences that the Standard Model is not the final theory to describe our nature. In this talk I intend to give a brief review of models to generate neutrino masses. I will in particular discuss scenarios where the generation of neutrino masses is linked to the...
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Sven Heinemeyer (CSIC (Madrid, ES))22/05/2019, 16:40
We present the recently developed benchmark scenarios for MSSM Higgs-boson searches at the LHC. They take into account the recently improved Higgs-boson mass calculations as well as the latest data from direct Higgs-boson searches and measurements of the 125 GeV Higgs boson. The different phenomenology of these scenarios is highlighted.
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Yuichiro Nakai (Rutgers University)22/05/2019, 16:40Machine Learning, Big Data and Quantum InformationOral
We introduce a potentially powerful new method of searching for new physics at the LHC, using autoencoders and unsupervised deep learning. The key idea of the autoencoder is that it learns to map "normal" events back to themselves, but fails to reconstruct "anomalous" events that it has never encountered before. The reconstruction error can then be used as an anomaly threshold. We demonstrate...
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Mr Andreas Mütter22/05/2019, 16:45
In orbifold compactifications of heterotic string theory, the four-dimensional effective theory (like the gauge group and the particle spectrum) is fully determined by the so-called gauge embedding. However, it is difficult to see directly whether a given gauge embedding leads to "good" phenomenological properties of the resulting model (such as containing the Standard Model spectrum). In this...
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Xuanhong Lou22/05/2019, 17:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Missing transverse momentum (MET) plays an essential role in many searches for Supersymmetry. However, increasing pile-up and other detector miss-measurements mean that separating signal events from those with no real missing transverse momentum can not always be trivial. The recent improvements in the reconstruction of the MET at the ATLAS experiment will be detailed including the use of...
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Kuver Sinha22/05/2019, 17:00
Axion-like particles (ALPs) produced in the core of a neutron star can convert to photons in the magnetosphere, leading to possible signatures in the soft and hard X-ray emission from these sources. We study these signatures taking the magnetar SGR 1806-20 as an example. In particular, assuming ALP emission rates from the core that are just subdominant to neutrino emission, the parameter...
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Ibrahim Safa (UW Madison)22/05/2019, 17:00
Since the confirmation of neutrino oscillations in the late 90s, it became apparent that the road to new physics is paved with neutrinos. On top of that, a plethora of evidence suggests the existence of a dark matter component that cannot be described without an extension to the Standard Model (SM). As a result, many proposed solutions that reconcile the SM with dark matter incorporate a new...
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Sven Heinemeyer (CSIC (Madrid, ES))22/05/2019, 17:00
We present the prospects of direct and indirect heavy SUSY Higgs boson searches for the HL-LHC and the ILC. They are based on the new set of benchmarks scenarios recently developed for SUSY Higgs-boson searches at the LHC.
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Sarunas Verner (University of Minnesota)22/05/2019, 17:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
One of the outstanding problems in theoretical physics is the cosmological constant problem. In the context of supersymmetry, the origin of supersymmetry breaking remains a mystery. We present a self-contained no-scale supergravity model which incorporates the Starobinsky-like inflation, an adjustable supersymmetry breaking scale $\mathcal{O}(10^{3})$ GeV, and a small positive cosmological...
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Prof. George Leontaris (University of Ioannina)22/05/2019, 17:10
The problem of moduli stabilisation and inflation are discussed in type IIB/F-theory. Considering a configuration of three intersecting D7 branes with fluxes, it is shown that higher loop effects induce logarithmic corrections to the K\"ahler potential which can stabilise the K\"ahler moduli. When a new Fayet-Iliopoulos term is included, it is also possible to generate the required number...
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Manimala Chakraborti (Instituto de Física Teórica UAM-CSIC, Cantoblanco, 28049 Madrid, Spain)22/05/2019, 17:20
We discuss a ∼ 3 σ signal (local) in the light Higgs-boson search in the diphoton decay mode at ∼ 96 GeV as reported by CMS, together with a ∼ 2 σ excess (local) in the b ̄b final state at LEP in the same mass range. We interpret this possible signal as a Higgs boson in the 2 Higgs Doublet Model with an additional real Higgs singlet (N2HDM). We find that the lightest Higgs boson of the N2HDM...
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Prof. We-Fu Chang (National Tsing Hua University)22/05/2019, 17:20
Lepton number has a deep connection with the neutrino mass generation. A new minimal anomaly-free gauged $U(1)_l$ lepton-number model, with four exotic chiral leptons, is studied. Motivated by phenomenology, we discuss a simplified case which has the universal Yukawa couplings. It agrees with all the experimental constraints and predicts $m_e, m_\mu \ll m_\tau$, and the latter is of the...
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Radovan Dermisek22/05/2019, 17:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
I will discuss an intriguing observation that the values of all the couplings in the standard model except those related to first two generations can be understood from the IR fixed point structure of renormalization group equations in the minimal supersymmetric model extended by one complete vectorlike family with the scale of new physics in a multi-TeV range.
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Natsumi Nagata (University of Tokyo)22/05/2019, 17:20
The observed rapid cooling of the neutron star (NS) located at the center of the supernova remnant Cassiopeia A (Cas A) can be explained in the minimal NS cooling scenario. This consequence may be changed if there exists an extra cooling source, such as axion emission. In this work, we study the Cas A NS cooling in the presence of axion emission, taking account of the temperature evolution in...
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Laura Chang (Princeton University)22/05/2019, 17:40
The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from the Inner Galaxy. We present the results of a search for dark matter annihilation in the smooth Milky Way halo for $|b| > 20^\circ$ and $r < 50^\circ$...
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Diego ARISTIZABAL (Universite de Liege), Diego Aristizabal (Universidad Tecnica Federico Santa Maria (USM))22/05/2019, 17:40
Abstract:
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The presence of new neutrino-quark interactions can enhance, deplete or distort the coherent elastic neutrino-nucleus scattering (CEvNS) event rate. The new interactions can involve CP violating phases that can potentially affect these features. Assuming vector light mediators we study the effects of CP violation on the CEvNS process, and for that aim we consider the COHERENT... -
Shehu AbdusSalam (Shahid Beheshti University)22/05/2019, 17:40
String compactifications with stabilised moduli and flat directions make it possible to
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constrain the theory using phenomenological constraints or data. The base geometry
typically has many, analytically intractible, moduli fields and flux quanta that
characterise the kind of physics which could be explained. Numerical moduli stabilisation will facilitate the connection of Calabi-Yau data,... -
Rick Cavanaugh (University of Illinois at Chicago (US))22/05/2019, 17:40
A comprehensive set of measurements of top quark pair and single top quark production in association with EWK bosons (W, Z or ɣ) is presented. The results are compared to theory predictions and re-interpreted as searches for new physics inducing deviations from the standard model predictions. The status of the search for four top quark production, to which the LHC experiments are starting to...
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Dr John Dixon22/05/2019, 17:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Suppressed SUSY is a mechanism for generating a realistic model based on SUSY, but without spontaneous or explicit breaking of SUSY. It arises from a canonical transformation, which preserves the BRST Master Equation of Supergravity, coupled to, for example, SU(5) Grand Unified Supersymmetric Gauge Theory with Matter. The canonical transformation preserves the Master Equation, but the...
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Shadman Salam22/05/2019, 18:00
The string theory landscape of vacua solutions provides physicists with some understanding as to the magnitude of the cosmological constant. Similar reasoning can be applied to the magnitude of the soft SUSY breaking terms in supersymmetric models of particle physics: there appears to be a statistical draw towards large soft terms which is tempered by the anthropic requirement of the weak...
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Andreas Warburton (McGill University, (CA))22/05/2019, 18:00
Associated production of top anti-top quark pairs along with a Higgs boson is an important Standard Model process. The top-Yukawa coupling can be directly measured from this process. Being the heaviest of the Standard Model particles, the coupling of top quark to the Higgs field is expected to be large. Any significant deviation in the rate of this process from the Standard Model expectation...
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Mrs Afaf Wasili22/05/2019, 18:00
The Mu3e experiment will search for the neutrinoless (lepton flavour violating) decay of an anti-muon to two positrons and an electron $\mu^{+} \rightarrow e^{+}e^{+}e^{-}$, with a sensitivity to a branching ratio smaller than $10^{-15}$ (phase I) and $10^{-15}$ (phase II). To achieve the proposed sensitivity, the mu3e experiment requires excellent vertex resolution, accurate timing, and...
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John Dixon (CAP)22/05/2019, 18:00
Suppressed SUSY is a new way of generating a reasonable model for SU(5) GUT theory coupled to Supergravity. The minimal version predicts an extremely heavy stable gravitino as a candidate for dark matter. The rest of the model appears to be consistent with the standard SU(5) model without SUSY. However, Suppressed SUSY improves things: the $X,Y$ vector boson masses are increased to Planck...
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Ms Aleksandra Nozdrina (University of Kansas), The T576 collaboration22/05/2019, 18:00
The T-576 experiment at the SLAC National Accelerator Laboratory was designed to make the first direct measurement of a coherent radio reflection (`radar') off the particle shower produced by an electron beam (>10 GeV/particle; 10^9 electrons per bunch) directed into a high-density polyethylene target. This beam is approximately equivalent to the shower produced by an EeV energy neutrino...
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Natalia Toro (SLAC)23/05/2019, 08:30
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Jan-Frederik Schulte (Purdue University (US))23/05/2019, 09:00
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Miaoyuan Liu (Fermi National Accelerator Lab. (US))23/05/2019, 09:30
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Ivonne Zavala23/05/2019, 10:00
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Michael Ratz (UC Irvine)23/05/2019, 10:50
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Michele Cicoli (Università di Bologna)23/05/2019, 11:20
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Hirosi Ooguri23/05/2019, 11:50
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Nicole Bell (University of Melbourne)23/05/2019, 12:20
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Satomi Okada23/05/2019, 14:00
We consider a non-exotic gauged U(1)_X extension of the Standard Model (SM), where the U(1)_X charge of a SM field is given by a linear combination of its hypercharge and Baryon-minus-Lepton (B−L) number. All the gauge and mixed gauge-gravitational anomalies are cancelled in this model with the introduction of three right-handed neutrinos (RHNs). Unlike the conventional minimal U(1)_X model,...
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Mr Sokratis Trifinopoulos (Universität Zürich)23/05/2019, 14:00
In recent years, significant experimental indications that point towards Lepton Flavor Universality violating effects in B-decays, involving $b \to c \tau \nu$ and $b \to s \ell^+ \ell^-$ have been accumulated. A possible New Physics explanation can be sought within the framework of R-parity violating Supersymmetry, which contains the necessary ingredients to explain the anomalies via both...
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William Shepherd (Sam Houston State University)23/05/2019, 14:00
I present constraints derived in a consistent and conservative way on the Wilson coefficients of the SMEFT from dilepton data at Tevatron and the LHC, and present the calculation of loop-level matching needed to utilize flavor data to constrain flavor-blind SMEFT effects. These are important new sources of constraint that will ultimately feed in to a global analysis of generic,...
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Giordon Holtsberg Stark (University of California,Santa Cruz (US))23/05/2019, 14:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
With the lack of experimental evidence for weak-scale SUSY in simple scenarios, focus is shifting to strengthening exclusion limits on many models. One of the simplest mechanisms has been by the introduction of multi-bin fits in analyses. However, these pose a difficult problem for phenomenologists wanting to test their models: insufficient information is made available to fully evaluate the...
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Brent Yates (University of California Riverside (US))23/05/2019, 14:00
Measurements of top quark properties using data collected by the ATLAS and CMS experiment at 13 TeV are presented. Among them, latest results on top mass, ttbar spin correlations and charge asymmetries will be discussed.
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Dr Christoph Wiegand (University of Bern)23/05/2019, 14:20
We studied $b\to s\mu^+\mu^-$ transitions and possible correlations with the anomalous magnetic moment of the muon ($a_\mu$) within two-Higgs-doublet models with generic Yukawa couplings, including the possibility of right-handed neutrinos. We performed the matching on the relevant effective Hamiltonian and calculated the leading one-loop effects for $b\to s\ell\ell^{(\prime)}$, $b\to...
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Dr Tomohiro Abe (Nagoya University)23/05/2019, 14:20
In fermionic dark matter (DM) models with pseudoscalar mediators, the tree-level amplitude for the DM-nucleon elastic scattering is suppressed by the momentum transfer in the non-relativistic limit. However, it is not suppressed at the loop level, and thus the loop corrections are essential to discuss the sensitivities of the direct detection experiments for the model prediction. In...
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Sezen Sekmen (Kyungpook National University (KR))23/05/2019, 14:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS and ATLAS experiments are presented for searches for supersymmetric electroweak gauge bosons. Small mass splittings between electroweak states known as a compressed spectrum present unique experimental challenges. This talk describes the new techniques utilized by CMS and ATLAS to address such difficult scenarios. The searches use proton-proton collision data with...
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Francesco Cirotto (Universita e sezione INFN di Napoli (IT))23/05/2019, 14:20
Many theories beyond the Standard Model predict new phenomena which decay to jets. Such final states are of particular interest at the LHC since new phenomena produced in parton collisions are likely to produce final states with (at least) two partons. This talk presents the latest 13 TeV ATLAS and CMS results, covering exclusive searches for dijet and dibjet resonances along with searches...
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Jose Enrique Garcia Navarro (Univ. of Valencia and CSIC (ES))23/05/2019, 14:25
Latest results on inclusive and differential top quark pair and single top quark production cross sections are presented using proton-proton collision data collected by CMS and ATLAS. The differential cross sections are measured as a function of various kinematic observables of the top quarks and the jets and leptons of the event final state. The results are confronted with precise theory...
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George Wei-Shu Hou (National Taiwan University (TW))23/05/2019, 14:40
The presence of extra Yukawa couplings, in particular $\rho_{\tau\mu}$ and $\rho_{tu}$, can enhance $B \to \mu\bar\nu$ rate but leave $B \to \tau\bar\nu$ unchanged, thereby their ratio can deviate from the value common to the Standard Model and two Higgs doublet model type II. With recent hint of enhancement in $B \to \mu\bar\nu$ using full Belle data,the Belle II experiment could probe this...
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Bibhushan Shakya (University of California Santa Cruz)23/05/2019, 14:40
We discuss prospects of searching for decays of heavy Higgs bosons into electroweak superpartners at the high luminosity LHC. In addition to the kinematic handles offered by the presence of a resonant particle in the production chain, heavy Higgs decays can be the dominant production mode of these superpartners, making it possible to extend coverage to otherwise inaccessible regions of the...
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David Dunsky (UC Berkeley)23/05/2019, 14:40
An exact spacetime parity replicates the $SU(2) \times U(1)$ electroweak interaction, the Higgs boson $H$, and the matter of the Standard Model. This "Higgs Parity" and the mirror electroweak symmetry are spontaneously broken at scale $v' = \langle{H'}\rangle \gg \langle{H}\rangle$, yielding the Standard Model below $v'$ with a quartic coupling that essentially vanishes at $v'$:...
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Doojin Kim (University of Arizona (US))23/05/2019, 14:50
Most of the methods to measure the top quark mass suffer from the jet energy scaling issue in achieving better precision. As a way to get around this issue, the study of B-hadron observables is motivated. While they do not involve such an issue, understanding underlying hadronization models is a key to achieve ~0.5% precision or better. In this presentation, I discuss the impact of the...
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Bing Li (University of Michigan (US))23/05/2019, 14:50
Many particles predicted by theories beyond the Standard Model, including for example new heavy vector bosons, decay into final states which contain high-pt leptons and possibly other objects such as missing transverse energy or jets. Searches for new physics models with these signatures are performed using the ATLAS and CMS experiments at the LHC. The talk will focus on the most recent...
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Dr Julian Heeck (University of California, Irvine)23/05/2019, 15:00
Recent hints for lepton-flavor non-universality in $B$-meson decays can be interpreted as hints for the existence of leptoquarks. We show that scalar leptoquarks unavoidably arise in grand unified theories, using the well-known Pati--Salam model as an example. These GUT-motivated leptoquarks can have a number of appealing features including automatic absence of proton decay, purely chiral...
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Volodymyr Takhistov23/05/2019, 15:00
Supersymmetry predicts a large number of scalar fields, some of which carry baryon and lepton numbers. I will discuss how fragmentation of scalar fields with an approximate U(1) symmetry into lumps is a general mechanism for primordial black hole formation. There are O(100) of such scalar fields (flat directions) in MSSM, which can naturally result in primordial black holes.
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Jiajing Mao (California Institute of Technology (US))23/05/2019, 15:00Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for supersymmetric particle production with Higgs bosons in the final state. Strong and electroweak production are considered in a variety of Higgs decay channels. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Filipe Almeida Veloso (LIP Laboratorio de Instrumentacao e Fisica Experimental de Part)23/05/2019, 15:10
Top quark production can probe physics beyond the SM in different ways. Some processes, and especially certain angular correlations, are sensitive to the existence of anomalous top quark couplings. In the SM, flavour-changing neutral currents (FCNC) are forbidden at tree level and are strongly suppressed in loop corrections. Several extensions of the SM incorporate significantly enhanced FCNC...
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Emanuele Usai (Brown University (US))23/05/2019, 15:20
The High-Luminosity Large Hadron Collider (HL-LHC) is expected to deliver an integrated luminosity of up to 3000 fb-1. The very high instantaneous luminosity will lead to about 200 proton-proton collisions per bunch crossing (“pileup”) superimposed to each event of interest, therefore providing extremely challenging experimental conditions. The sensitivity to find new physics Beyond the...
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Keping Xie (Southern Methodist University)23/05/2019, 15:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We show that the well known Georgi-Machacek (GM) model can be realized as a limit of the recently constructed Supersymmetric Custodial Higgs Triplet Model (SCTM) which in general contains a significantly more complex scalar spectrum. We dub this limit as the Supersymmetric GM (SGM) model, which gives a weakly coupled origin for the GM model at the electroweak scale. We derive a mapping between...
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Peisi Huang (University of Nebraska-Lincoln)23/05/2019, 15:20
The LHCb experiment has recently reported evidence of deviation from the Standard Model from B decays. The experimental data also suggests that there can be a $q^2$ dependence in $R_K^*$. In this talk, I will address the q^2 dependence in two possible scenarios. The first scenario is that the $q^2$ dependence is actually due to hadronic effects. The hadronic effects are kinematically...
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Andrew Lee Renshaw (University of Houston (US))23/05/2019, 15:20
The LAr technology has strong potential to push the sensitivity for WIMP detection several orders of magnitude beyond current levels. The Global Argon Dark Matter Collaboration (GADMC) will pursue a sequence of future detectors to follow this potential. The immediate objective is the DarkSide-20k two-phase detector, currently under construction at LNGS. DarkSide-20k will have ultra-low...
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Zhuoni Qian (IBS)23/05/2019, 15:35
Off-shell Higgs at the high mass tail may shed light on the underlying mechanism of the electroweak symmetry breaking. Due to the large cancellation in the standard model (SM) between the box and Higgs-mediated triangle diagrams, the gg → WW(ZZ) process in the SM is dominated by the VT VT transverse-mode at the high mass tail. The cancellation does not necessarily hold, when there is a...
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Alexander Khanov (Oklahoma State University (US))23/05/2019, 15:40
The Large Hadron Collider (LHC) has been successfully delivering proton-proton collision data at the unprecedented center of mass energy of 13 TeV.
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An upgrade is planned to increase the instantaneous luminosity delivered by the LHC in what is called HL-LHC, aiming to deliver a total of about 3000/fb of data to the ATLAS detector at a center of mass energy of 14 TeV. To cope with the expected... -
Yu Hang Ng (University of Nebraska-Lincoln)23/05/2019, 15:40Supersymmetry: Models, Phenomenology and Experimental ResultsOral
I will discuss the di-Higgs production via gluon fusion within the context of Minimal Supersymmetric Standard Model (MSSM) and Next-to-Minimal Supersymmetric Standard Model (NMSSM). The calculation is based on the analytical expression of the leading order Feynman amplitudes (which includes both quark and squark loops), and therefore, both off-shell effects and interference between resonant...
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Christopher Verhaaren (University of California, Davis)23/05/2019, 15:40
The twin Higgs scenario protects the Higgs mass from large quantum corrections through symmetry partners without standard model (SM) color charge.The particles belong to a "twin" sector, related to the SM by a discrete exchange symmetry. The gauge symmetries in each sector forbid all but a few renormalizable connections between the sectors. Vectors portals, either through twin particles or...
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Cristian Gaidau (University of Illinois at Urbana-Champaign)23/05/2019, 16:20
Dark matter (DM) self-interactions affect the gravitational capture of DM in the Sun and Earth differently as a simple consequence of the differing kinematics of collisions within the two potential wells: the dominant effect of self-interactions in the Sun is to provide an additional channel for capture, while the dominant effect in the Earth is to eject previously captured DM. I will discuss...
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Damian Kaloni Mayorga Peña (DCI, University of Guanajuato)23/05/2019, 16:20
In the quest of obtaining models with U(1) symmetries singlets with charges higher than 4 there is no systematic prescription from the point of view of F-theory. Following early work, where we worked out Sen's weak coupling limit for a family of F-theory standard models we now are able to systematically construct higher U(1) charge models in type IIB applying matrix factorization techniques,...
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Prof. Xerxes Tata (U. of Hawaii)23/05/2019, 16:20Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Experiments at the LHC have not yet seen any direct signs of superpartners.
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Many authors have suggested mechanisms that reduce the SUSY reach of the
LHC from its canonical expectation. After a lightning review of these, I will
reexamine the fine-tuning arguments that led to these canonical expectations
and argue that the non-appearance of superpartners may not be at odds with
SUSY... -
MEG-II collaboration, Terence Libeiro (Texas Tech University (US))23/05/2019, 16:20
The MEG experiment took data at the Paul Scherrer Institut in the years 2009-2013 and published the most stringent limit on the charged lepton flavor violating decay $\mu \rightarrow e\gamma$: BR($\mu \rightarrow e\gamma$) $<4.2 \times 10^{-13}$ @90% C.L.
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The MEG detector has been upgraded in order to reach a sensitivity of $5 \times 10^{-14}$, which corresponds to an improvement of one... -
Duong Hai Nguyen (The State University of New York SUNY (US))23/05/2019, 16:20
Material should contain inclusive DY production of Z and W, which includes A-FB, angular coefficient, M_W, W helicity, and V+jets measurements including heavy-flavour (W+c, W+b, Z+b, Z+c). The speaker can choose to concentrate more on 2 or 3 recent results.
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SUDIP JANA (OKLAHOMA STATE UNIVERSITY)23/05/2019, 16:40
We show that the rate for di-Higgs production at the LHC can be enhanced by a factor as large as 25 compared to the Standard Model value in the two Higgs doublet model, while being consistent with the known properties of the observed Higgs boson $h$. There are correlated modifications in $t\overline{t}h$ and resonant $Zh$ production rates, which can serve as tests of this model. Our...
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Matthew Moschella (Princeton University)23/05/2019, 16:40
The observed flattening of rotation curves is usually considered strong evidence for the existence of dark matter on galactic scales. However, observations such as the Baryonic Tully-Fisher Relation and the Radial Acceleration Relation, suggest that the observed dynamics in galaxies are strongly correlated with the distribution of baryonic matter. Because they are challenging to explain in the...
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Kuver Sinha23/05/2019, 16:45
I will discuss certain long-standing features of the string landscape: the ubiquity of scalar and pseudoscalar fields, and the statistical bias towards a large SUSY breaking scale. In particular, scalars present the possibility of an early matter dominated era with important implications for dark matter, while the statistical draw towards large F-terms may be relevant for low-energy...
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Hidetoshi Otono (Kyushu University (JP))23/05/2019, 16:50Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Supersymmetric models present a wide variety of signatures that might be accessible at the LHC. In some cases supersymmetric particles may acquire finite lifetimes, and once produced in collisions, their direct trajectories or decay products can be observed as highly distinctive signatures with relatively small backgrounds. In recent years, the capability of the ATLAS experiment to search for...
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Ian Lewis (The University of Kansas)23/05/2019, 17:00
Double gauge boson production is one of the most important processes under study at the LHC. Of particular importance is the measurement of the trilinear electroweak gauge boson coupling, which sheds light on the gauge structure of the Standard Model. We study the impact of anomalous gauge boson and fermion couplings on the production of W+W− pairs at the LHC and how these couplings affect...
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Siddharth Mishra-Sharma (New York University)23/05/2019, 17:00
Dark matter (DM) substructure is expected to exist over a large range of scales in our Galaxy. Its properties, such as its spatial distribution and abundance at different mass scales, can strongly correlate with the underlying particle physics properties of dark matter. Inferring DM substructure properties can thus hold the key to pinning down the particle nature of DM. In this talk, I will...
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Douglas Tuckler (UC Santa Cruz)23/05/2019, 17:00
LHC searches for extended Higgs sectors have so far focused on scenarios that conserve flavor i.e. the additional Higgs bosons couple to fermions in a flavor diagonal way and the signatures of the additional Higgs bosons dominantly involve third generation fermions. Much of the the focus of LHC searches have been on Type I and Type II two Higgs doublet models (2HDMs). However, there may exist...
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Dylan Paul Gilbert (Univ. of California San Diego (US))23/05/2019, 17:10Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Results from the CMS experiment are presented for searches for supersymmetric particle production in decays channels with long-lived particles. Long-lived final states can arise in many SUSY scenarios resulting in a diverse array of striking signatures. Results are presented here from several such scenarios. The searches use proton-proton collision data with luminosity up to 137 fb-1 recorded...
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Dr Federico Carta (DESY)23/05/2019, 17:10
In the last couple of years it was discovered that some 4d N=1 quantum field theories flow in the IR to 4d N=2 superconformal field theories (often of generalized Argyres-Douglas type), therefore showing a phenomenon of Supersymmetry Enhancement at the IR fixed point. The N=2 IR theory is often non-lagrangian while the N=1 UV theory is lagrangian, therefore such flows are extremely useful to...
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Dr Fa Peng Huang (Institute for Basic Science)23/05/2019, 17:20
Motivated by the absence of new physics signals at LHC and dark matter direct detections, we study new approaches to explore the dark matter and baryogenesis by SKA-like and LISA-like experiments.
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Satoshi Shirai (Kavli IPMU)23/05/2019, 17:20
Electroweak-interacting massive particles (EWIMPs) exist in a broad class of new physics models beyond the Standard Model. The EWIMP generally affects the LHC signatures through quantum corrections even without direct productions. By measuring the Standard Model processes precisely, we can indirectly probe the EWIMPs. In this talk, we discuss the current constraint and future prospect of the...
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Roman Pasechnik (Lund university)23/05/2019, 17:20
In this talk, I overview prospects for New Physics searches offered by recently suggested family-nonuniversal Three-Higgs Doublet models such as those based upon U(1), U(1)xU(1), U(1)xZ_2 and CP4 family symmetries. Implications of these scenarios for explanation of fermion mass and mixing hierarchies as well as the observed flavour anomalies are outlined.
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Amin Aboubrahim (Northeastern University)23/05/2019, 17:30Supersymmetry: Models, Phenomenology and Experimental ResultsOral
We investigate a class of models where the supergravity model with the standard model gauge group is extended by a hidden sector $U(1)_X$ gauge group and where the lightest supersymmetric particle is the neutralino in the hidden sector. We investigate this possibility in a class of models where the stau is the lightest supersymmetric particle in the MSSM sector and the next-to-lightest...
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Mr Quentin Bonnefoy (Centre de Physique Théorique - École Polytechnique)23/05/2019, 17:35
I will discuss tests of the weak gravity conjecture in the presence of supersymmetry breaking, performed in the framework of type I string theory with supersymmetry broken by compactification (à la Scherk-Schwarz). Such a (perturbative string theory) setting allows for the presence of runaway potentials (here for the compactification radius), which is the only possibility if one accepts the...
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Dr Junichiro Kawamura (Keio University)23/05/2019, 17:40
The Standard Model (SM) is extended by introducing a complete vector-like fourth family and a vector-like U(1)' gauge symmetry. This model can explain experimental values of the muon anomalous magnetic moment and anomalies for $b \to s \mu^+ \mu^-$ processes simultaneously without conflicting with the other observations, e.g. lepton flavor violating processes, CKM matrix, neutral meson...
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Dr Junmou Chen (Korean Institute for Advanced Study)23/05/2019, 17:40
We derive the electroweak (EW) collinear splitting functions up to single logs. We first derive the splitting functions in the unbroken limit, and then we systematically incorporate effects of EW symmetry breaking (EWSB), by imposing a particularly convenient gauge choice (dubbed “Goldstone Equivalence Gauge”) that disentangles the effects of Goldstone bosons and gauge fields in the presence...
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Javier Montejo Berlingen (CERN)23/05/2019, 17:50Supersymmetry: Models, Phenomenology and Experimental ResultsOral
R-parity violation introduces many viable signatures to the search for supersymmetry at the LHC. The decay of supersymmetric particles can produce leptons or jets, while removing the missing transverse momentum signal common to traditional supersymmetry searches. The talk presents recent results from searches of supersymmetry in these unusual signatures of R-parity violation
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with the ATLAS and... -
Dr Arindam Das (Osaka University)23/05/2019, 18:00
The production of Higgs $(h)$ in association with a $Z$ boson from the neutral beyond the Standard Model (SM) gauge boson such as $Z^\prime$. We consider a scenario where the SM is extended by a general $U(1)_X$ group. The charges can be constrained by solving the anomaly free conditions. The $U(1)_X$ charge sector can be expressed in terms of charges of the Higgs and the BSM scalar such as...
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Jakob Moritz (DESY)23/05/2019, 18:00
We argue that a new type of ultra light axion is generically present in the type IIB part of the string theory landscape. It arises when fluxes stabilize Calabi-Yau manifolds near a conifold transition locus in moduli space. After accounting for ten-dimensional backreaction the scalar potential features a finite axion monodromy with overall scale far smaller than the weak gravity conjecture...
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Michihisa Takeuchi (Univ. of Tokyo)24/05/2019, 08:30
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Ryo Yonamine (Tohoku University)24/05/2019, 09:00
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Marcela Silvia Carena Lopez (Fermi National Accelerator Lab. (US))24/05/2019, 09:30
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Pedro Machado (Fermilab)24/05/2019, 10:00
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Alakabha Datta24/05/2019, 10:50
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Xiao-Gang He24/05/2019, 11:20
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Dr Chee Sheng Fong (Universidade de São Paulo)24/05/2019, 11:50
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Mariano Quiros Carcelen (The Barcelona Institute of Science and Technology (BIST) (ES))24/05/2019, 12:20
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Tomohiro Abe24/05/2019, 14:00
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Brian Thomas Batell24/05/2019, 14:30
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Prof. Seong Chan Park (Yonsei University)24/05/2019, 15:00
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Aaron Zimmerman (UT Austin)24/05/2019, 15:50
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Tianjun Li (Chinese Academy of Sciences)24/05/2019, 16:20
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Gordon Kane (University of Michigan)24/05/2019, 16:30
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Sven Heinemeyer (CSIC (Madrid, ES))
CMS presented a 3 sigma (local) excess in light Higgs-boson searches in the diphoton final state at around 96 GeV. ATLAS results do not exclude this possible signal. LEP published a 2 sigma (local) excess in the same mass range in the bb final state. We present two SUSY models that can simultaneously explain both excesses, while being in agreement with all direct and indirect Higgs boson...
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Patrick Fitzpatrick (Massachusetts Institute of Technology)
We explore the Elastically Decoupling Relic (ELDER) scenario in a general context where $3 \rightarrow 2$ annihilations play an important role in determining the late-time abundance of dark matter (DM), whether the dark sector coupling is strong or weak (the Not-Forbidden Dark Matter, or NFDM, scenario). In the conventional weakly-interacting massive particle (WIMP) paradigm the thermal relic...
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Kaustuv Datta (ETH Zurich (CH))Machine Learning, Big Data and Quantum InformationOral
Machine-learning assisted jet substructure tagging techniques have the potential to significantly improve searches for new particles and Standard Model measurements in hadronic final states. Techniques with simple analytic forms are particularly useful for establishing robustness and gaining physical insight. We will look at a method that applies machine learning to identify the amount of...
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Dr Giuseppe Bozzi (Università di Pavia)
Within the framework of transverse-momentum-dependent factorization, we investigate for the first time the impact of a flavor-dependent intrinsic transverse momentum of quarks on the production of W bosons in hadronic collisions. We study the transverse-mass, lepton transverse momentum, and missing transverse momentum distributions of the W−decay products by means of a template-fit technique...
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CMS Collaboration
Vector-boson fusion and vector-boson scattering processes are studied using the data collected by the ATLAS and CMS detectors at the LHC.
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Clara Murgui Galvez
We discuss the visibility of gamma lines from dark matter annihilation. We point out a class of theories for dark matter which predict the existence of gamma lines with striking features. In these theories, the final state radiation processes are highly suppressed and one could distinguish easily the gamma lines from the continuum spectrum. We discuss the main experimental bounds and show that...
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Prof. Chun Liu (Institute of Theoretical Physics, Chinese Academy of Sciences)Supersymmetry: Models, Phenomenology and Experimental ResultsOral
Supersymmetry was proposed to be the underlying physics of the flavor puzzle. The charged lepton mass hierarchy was naturally understood. The model is predictive. CP violation in the lepton sector, and other aspects of neutrino physics, are studied. In addition to the sneutrino vacuum expectation values (VEVs), the heavy vector-like triplet also contributes to neutrino masses. Phases of the...
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Prof. Sunghoon Jung (Seoul National University)Machine Learning, Big Data and Quantum InformationOral
Broad resonances are generic predictions of many BSMs. But their discovery is expected to be challenging at the LHC and future collider experiments. It is because traditional resonance searches are based on the invariant mass distribution that will not be sharp enough for a broad resonance.
We used the deep neural network to develop a method to discover broad resonances at collider...
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Andreas Warburton (McGill University, (CA))
The production of multiple electroweak bosons at the LHC constitutes a stringent test of the electroweak sector and provide a model-independent means to search for new physics at the TeV scale. Constraining the multiboson production through direct measurements also allows to constraint such backgrounds in SUSY searches.
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Nima Arkani-Hamed (IAS)
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Prof. Supriya KAR (University of Delhi)
We revisit the Killing symmetries of the Schwrzschild geometry with a renewed interest to revel the constants of motion in the General Relativity (GR). A term (ML^2/r^3) in the effective potential on an equatorial plane is known to hint
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at a quantum gravity phenomenon! However no exact geometry underlying the new conserved charge (ML^2) is known GR and in a lower or many higher dimensional... -
Stefano Profumo (University of California, Santa Cruz)
I will discuss a few questions connecting dark matter and primordial black holes: are they THE dark matter? If so, how can we tell? Did LIGO detect primordial black holes? Do light black holes stop evaporating around the Planck scale? If so, are they detectable? Did primordial black holes generate the dark matter and/or the baryon asymmetry?
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Prof. Sunghoon Jung (Seoul National University)
What can we learn about the Dark Matter frontier with Gravitational-Wave (GW) observations at LIGO and future detectors?
We first introduce a new GW observable — GW Fringe — that allows LIGO alone to probe compact dark matter such as primordial black holes or dark stars. Furthermore, by augmenting LIGO with mid-frequency detectors, one can also probe various other dark matter kinds via yet...
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Fabio Anulli (Sapienza Universita e INFN, Roma I (IT))
Many extensions of the Standard Model include the possibility of light new particles, such as axions or dark matter candidates. These scenarios can be probed using the large data sets collected by B-factories, complementing measurements performed at the LHC. The BABAR collaboration has conducted an extensive program to search for axions in B decays, self-interacting or non-miminal dark forces,...
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Dr Joydeep Roy (Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing)Supersymmetry: Models, Phenomenology and Experimental ResultsOral
The null results of the LHC searches have put strong bounds on new physics scenario such as supersymmetry (SUSY). With the latest values of top quark mass and strong coupling, we study the upper bounds on the sfermion masses in Split SUSY from the observed Higgs boson mass and electroweak (EW) vacuum stability. To be consistent with the observed Higgs mass, we find that the largest value of...
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Barry Dillon (Jozef Stefan Institute)Machine Learning, Big Data and Quantum InformationOral
We apply techniques from Bayesian generative statistical modeling to uncover hidden features in jet substructure observables that discriminate between different a priori unknown underlying short distance physical processes in multi-jet events. In particular, we use a mixed membership model known as Latent Dirichlet Allocation to build a data-driven unsupervised top-quark tagger and ttbar event...
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