Tommaso Lari
(University and INFN, Milano)
24/08/2015, 09:00
Plenary Talks
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarises recent ATLAS results for searches for supersymmetric (SUSY) particles. Weak and strong production in both R-Parity conserving and R-Parity violating SUSY scenarios are considered. The searches involved final states including jets,...
Christian Sander
(Hamburg University (DE))
24/08/2015, 09:30
Plenary Talks
This talk will review the CMS results on SUSY searches.
Sezen Sekmen
(Kyungpook National University (KR))
24/08/2015, 10:00
Plenary Talks
This talk will focus on the topic of new directions in SUSY searches and discuss new ideas about how to search for SUSY at LHC.
Jamie Tattersall
(University of Heidelberg)
24/08/2015, 10:30
Plenary Talks
The era of the LHC has completely changed the landscape for Beyond the Standard Model theories. Firstly, the discovery of the Higgs Boson along with precision mass and coupling measurements severely constrain models. Secondly, the null results from the huge number of experimental searches now place strict bounds on new states at the TeV scale.
In order to make sense of the wealth of new...
Priscilla Pani
(Stockholm University (SE))
24/08/2015, 11:30
Plenary Talks
Astrophysical observations have provided compelling proof for the existence of a non-baryonic dark component of the universe: Dark Matter (DM). The DM abundance is precisely measured but its nature is still not known. A compelling hypothesis is that the DM is composed of a weakly interacting massive particle (WIMP) which can be produced and detected at the LHC. This talk will present an...
Mariangela Lisanti
(Princeton University)
24/08/2015, 12:00
Plenary Talks
Dark matter constitutes nearly 85% of the matter in the Universe, and yet we know very little of its fundamental properties. There are currently a wide array of searches for this missing matter—-ranging from collider to direct and indirect detection experiments. I will review the current status of these searches and discuss the implications for theories of dark matter.
Matthew Kleban
(New York University)
24/08/2015, 12:30
Plenary Talks
I will give an overview and status report on current issues in the theory of inflation. These include initial conditions and whether inflation really solves the horizon and flatness problems, eternal inflation and its discontents, potential observational signatures of the multiverse, large tensor amplitude and the consequent trans-Planckian field range, and the fundamental question of the...
Prof.
Supriya Kar
(University of Delhi (Department of Physics and Astrophysics))
24/08/2015, 14:30
Fundamental and String Theory
We revisit an effective curvature formalism underlying a two form in a U(1) gauge theory on a D4-brane in presence of a background black hole metric. Alternately the scenario may be analysed in presence of an extra fifth dimension transverse to a vacuum created gravitational pair of 3-brane and anti 3-brane by the Kalb-Ramond quanta. Interestingly an electric (non-linear) charge independence...
Sridhara Dasu
(University of Wisconsin (US))
24/08/2015, 14:30
Flavor Violation Theory and Experiment
Rare decays and angular distributions of B mesons are particularly sensitive probes of physics beyond the Standard Model. This talk reviews results on these processes obtained with the data collected by the CMS experiment during the first Run of the LHC. We will show the most precise single-experiment results on the measurement of the Bs->µµ branching fraction and search for Bd->µµ, along with...
Jessica Goodman
(The Ohio State University)
24/08/2015, 14:30
SUSY/String Models
In this work we calculate important one loop SUSY-breaking parameters in models with Dirac gauginos, which are implied by the existence of heavy messenger fields. We find that these SUSY-breaking effects are all related by a small number of parameters, thus the general theory is tightly predictive. In order to make the most accurate analyses of one loop effects, we introduce calculations...
Mr
Philip Diessner
(TU Dresden (DE))
24/08/2015, 14:30
Precision Computations and Monte Carlo Tools, all areas
R-Symmetry is an additional symmetry which can be imposed on a supersymmetric model,
leading to interesting phenomenological consequences like the prediction of Dirac Gauginos.
A model with a minimal implementation of this symmetry is the MRSSM and in this talk an analysis
of its Higgs sector in the light of the recent SM-like Higgs boson discovery will be presented.
Due to mixing with...
Devin Walker
24/08/2015, 14:30
Alternative Theories
We review recent theoretical constraints on models with thermal dark matter. The constraints include perturbative unitarity constraints as well as constraints from dark matter bound state formation. We focus on scenarios where the dark matter annihilates via neutral and charged bosons. The latter includes annihilation via colored and electrically charged scalars, which is common in...
Pierfrancesco Butti
(Nikhef National institute for subatomic physics (NL))
24/08/2015, 14:30
Supersymmetry Phenomenology and Experiment
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 of a few hundred GeV can also give rise to large direct pair production rates at the LHC. The talk presents recent ATLAS results from searches for direct stop and sbottom...
Heather Logan
(Carleton University)
24/08/2015, 14:30
Higgs Theory and Experiment
I will review the current status of Higgs cross section and branching ratio calculations in the MSSM and other BSM theories with extended Higgs sectors.
Zachary Thomas
24/08/2015, 14:50
Particle Cosmology Theory and Experiment
When multiple sectors break supersymmetry, there is a corresponding multiplicity of goldstini, which may comprise some or all of the dark matter in our universe. In this talk, we identify a previously overlooked goldstino decay channel which leads to a smoking gun photon line signature. This new contribution can be interpreted as arising either from a supersymmetry-breaking Fayet-Iliopoulos...
Anja Butter
24/08/2015, 14:50
Precision Computations and Monte Carlo Tools, all areas
The NMSSM is, for several reasons, an attractive extension of the
Standard Model. One of them is that the gamma ray excess from the
galactic center can be explained with an NMSSM neutralino annihilating
through a light pseudoscalar. Such light dark matter candidate will
lead to invisible Higgs decays at the LHC. Using SFitter we connect
the galactic center excess with the observed dark...
Dr
Soumya Rao
(University of Adelaide)
24/08/2015, 14:50
SUSY/String Models
We perform a comprehensive study of SU(5), SO(10) and E(6) supersymmetric GUT models where the gaugino masses are generated through the F-term breaking vacuum expectation values of the non-singlet scalar fields. In these models the gauginos are non-universal at the GUT scale unlike in the mSUGRA scenario. We discuss the properties of the LSP which is stable and a viable candidate for cold...
Javier Mauricio Duarte
(California Institute of Technology (US))
24/08/2015, 14:50
Supersymmetry Phenomenology and Experiment
The latest results from CMS on searches for stop and sbottom squarks are presented. Searches for direct squark production and indirect production through gluino cascades in a variety of decay channels are reviewed. The results are based on 20 fb-1 of data collected during the 8 TeV LHC run.
Gerald Eigen
(University of Bergen (NO))
24/08/2015, 14:55
Flavor Violation Theory and Experiment
The large amount of Heavy Flavour data collected by the ATLAS
experiment is potentially sensitive to New Physics, which may be found
in the mixing of B meson states, or through processes that are
naturally suppressed in the Standard Model. We present the most recent
results on the measurement of the decay of the Bs into J/psi phi based
on full data collected in LHC Run-1 and with updated...
Roberto Castello
(CERN)
24/08/2015, 15:00
Higgs Theory and Experiment
The most recent results about the Beyond Standard Model Higgs searches with the CMS experiment at the LHC will be presented. The talk would include material from SM Higgs, Exotica and SUSY analyses for the Higgs sector. Eventual new results for the Higgs searches with the Run 2 data will be detailed, if any.
Bhawna Gomber
(University of Wisconsin (US))
24/08/2015, 15:00
Alternative Theories
CMS searches for dark matter recoiling from singly produced jets, photons, weak bosons and heavy quarks, using data from 2011-2012 are presented. Prospects for searches in LHC Run-2 are briefly discussed.
Dr
Afsaneh Bazrafshan
(Jahrom University)
24/08/2015, 15:00
Fundamental and String Theory
In this paper, we investigate the stability of nonlinear charged black holes in quartic quasitopological gravity in the presence of a nonlinear electromagnetic field. The entropy of the charged black holes of fourth order quasitopological gravity through the use of Wald formula is computed and the mass, temperature and the charge of these black holes are found as well. We show that black holes...
Adam Coogan
(UC Santa Cruz)
24/08/2015, 15:10
Particle Cosmology Theory and Experiment
We investigate the relation between the annihilation of dark matter (DM) particles into lepton pairs and into 2-body final states including one or two photons. We parametrize the DM interactions with leptons in terms of contact interactions, and calculate the loop-level annihilation into monochromatic gamma rays, specifically computing the ratio of the DM annihilation cross sections into two...
Haipeng An
(Caltech)
24/08/2015, 15:10
Supersymmetry Phenomenology and Experiment
Light top superpartners play a key role in stabilizing the electroweak scale in supersymmetric theories. For R-parity conserved supersymmetric theories, traditional searches are not sensitive to the compressed region $m_{\tilde t}\approx m_\chi+m_t$ and $m_{\tilde t} \approx m_\chi + m_W + m_b$, where $\chi$ is the neutralino. In this talk, I will introduce a new observable $R_M$ whose...
Mr
Raymond Co
(University of California, Berkeley)
24/08/2015, 15:10
SUSY/String Models
We are developing a simple supersymmetric axion theory by extending the MSSM with a gauge singlet axion field and right-handed neutrinos. To our surprise, this simple model has been overlooked in the literature, while models that introduce more singlet fields are intensively studied. In addition to the Peccei-Quinn solution to the strong CP problem, the achievements of our model are as...
Jorge de Blas
(INFN Rome)
24/08/2015, 15:10
Precision Computations and Monte Carlo Tools, all areas
We present updated global fits of the Standard Model and beyond to
electroweak precision data, taking into account recent progress in
theoretical calculations and experimental measurements. From the
fits, we derive model-independent constraints on new physics by
introducing oblique and epsilon parameters, and modified
$Zb\bar{b}$ and $HVV$ couplings. Furthermore,
we also perform fits of...
Valerio Ippolito
(Harvard University (US))
24/08/2015, 15:15
Alternative Theories
Searches for strongly produced dark matters using events with jets, photons, heavy-flavor quarks or massive gauge bosons recoiling against large missing transverse momentum in ATLAS are presented. These “mono-X” signatures provide powerful probes to dark matter production at the LHC, allowing to interpret results in terms of effective field theory and/or simplified models with pair production...
Mauro Valli
24/08/2015, 15:20
Flavor Violation Theory and Experiment
We critically reassess the theoretical uncertainties in the Standard Model calculation of $B \rightarrow K^{*}\mu\,\mu$ observables, focusing on the low $q^{2}$ region. We point out that even optimized observables are affected by sizable uncertainties coming both from full form factors, when one considers the departure from the infinite mass limit, and from long distance effects. In...
Matteo Bauce
(Universita e INFN, Roma I (IT))
24/08/2015, 15:20
Higgs Theory and Experiment
We search for the pseudoscalar Higgs boson A of 2HDMs in the decay modes A-> tautau and A->Zh. In the latter case, h is the lightest neutral scalar Higgs boson and is assumed to be the newly discovered 125 GeV particle. The results are interpreted in the context of 2HDMs and the Minimal Supersymmetric Standard Model (MSSM).
Lawrence Lee Jr
(U of Adelaide)
24/08/2015, 15:30
Supersymmetry Phenomenology and Experiment
The "Recursive Jigsaw Technique" provides a powerful new approach to extract a kinematic basis of variables that can be used to categorise searches for new physics signals at the LHC. This talk will focus on topologies relevant to the LHC in 2015 namely strong production of gluinos and third generation squarks. We demonstrate sensitive analysis strategies to search for beyond standard model...
Debtosh Chowdhury
(INFN, Roma)
24/08/2015, 15:30
Precision Computations and Monte Carlo Tools, all areas
We determine the next-to-leading order renormalization group equations for the Two-Higgs-Doublet model with a softly broken $Z_2$ symmetry and CP conservation in the scalar potential. We use them to identify the parameter regions which are stable up to the Planck scale and find that in this case the quartic couplings of the Higgs potential cannot be larger than 1 in magnitude and that the...
Chiara Arina
(University of Amsterdam)
24/08/2015, 15:30
Particle Cosmology Theory and Experiment
In this talk we present the phenomenology of a mostly right-handed sneutrino as the lightest supersymmetric particle (LSP) and dark matter candidate. We focus our attention on indirect detection signals such as enhanced monochromatic neutrino lines in the reach of future neutrino probe. Furthermore we illustrate the complementarity between indirect and direct detection of sneutrino LSP with...
Bibhushan Shakya
(MCTP)
24/08/2015, 15:30
SUSY/String Models
Obtaining light active neutrino masses as well as phenomenologically interesting (keV-GeV) sterile neutrino masses without any unnaturally small parameters hints at a new symmetry in the neutrino sector that is broken at the PeV scale, presumably tied to supersymmetry breaking. This framework can also explain the recently observed PeV energy neutrinos at IceCube and the 3.5 keV X-ray line.
Phat Srimanobhas
(Chulalongkorn University (TH))
24/08/2015, 15:30
Alternative Theories
We present a search for dark matter production using proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to an integrated luminosity of 18.8 fb^{-1}, at a center-of-mass energy of \sqrt{s} = 8 TeV. Events are requires to have at least two jets and no isolated leptons. The specialized razor variables are employed to quantify the transverse momentum...
Mohammad Ghanaatian
(Payame Noor University)
24/08/2015, 15:30
Fundamental and String Theory
Quartic quasi-topological black holes in the presence of a nonlinear electromagnetic Born-Infeld field is presented. By using the metric parameters, the charged black hole
solutions of quasi-topological Born-Infeld gravity is considered.The thermodynamics of these black holes are investigated and I show that the thermodynamics and conserved quantities verify the first law of thermodynamics. I...
Jonatan Piedra Gomez
(Universidad de Cantabria (ES))
24/08/2015, 15:45
Alternative Theories
We present results of searches for pair-produced dark matter in association with top quarks, using proton-proton collision data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 8 TeV. We investigate processes yielding top quark pairs or a single top quark plus a large amount of missing transverse energy due to the undetected dark matter particle pair. We search for...
Dr
Daniel Butter
(Nikhef)
24/08/2015, 16:30
Fundamental and String Theory
I will discuss how to classify (up to discrete identifications) all rigid 4D N=2 supersymmetric backgrounds
in both Lorentzian and Euclidean signatures that preserve eight real supercharges.
These include backgrounds such as warped $S^3 \times \mathbb R$,
warped $AdS_3 \times \mathbb R$, and $AdS_2 \times S^2$, as well as some more exotic
geometries. Time permitting, I will also discuss...
Marcin Chrzaszcz
(University of Zurich (CH))
24/08/2015, 16:30
Flavor Violation Theory and Experiment
Electroweak and radiative penguin b-hadron and c-hadron decays set strong constraints on the SUSY parameter space. Recent LHCb measurements have shown indications of large unexpected asymmetries in
B->K*mumu and hints of lepton universality violation. Latest results involving new decay modes are presented.
Benjamin Safdi
(massachusetts institute of technology)
24/08/2015, 16:30
Particle Cosmology Theory and Experiment
We present a new method to characterize unresolved point sources (PSs), which generalizes traditional template fits to account for non-Poissonian photon statistics. Using Fermi Large-Area Telescope gamma-ray data, we use the method to characterize PS populations at high latitudes and in the Inner Galaxy. We find that PSs (resolved and unresolved) account for $\sim$50% of the total...
Joerg Jaeckel
(ITP Heidelberg)
24/08/2015, 16:30
Alternative Theories
We review theoretical and phenomenological motivations for hidden photons (aka dark photons, etc.) and other very light and very weakly coupled new particles. New experiments operating at low energies but offering high sensitivities provide interesting opportunities for discoveries. Additional motivations comes from possible connections to dark matter, which also opens avenues for extremely...
Howard Haber
(University of California,Santa Cruz (US))
24/08/2015, 16:30
Higgs Theory and Experiment
It is possible that the electroweak scale is low in part due to selection effects, i.e., fine-tuning of the microscopic parameters. The experimental discovery of new light fundamental scalars other than the Standard Model Higgs boson would cast doubt on this theory, since generically such states imply parametrically worse fine-tuning with no compelling connection to selection effects. ...
Nathan Papapietro
(npapapietro@crimson.ua.edu)
24/08/2015, 16:30
SUSY/String Models
We propose a new variation to the SUSY Left-Right model (LRM) by extending the Minimal B-L model. Starting from energies of s√>7 TeV, we can describe an intermediate scale for Grand Unification along the Pati-Salam path from SO(10). Here the breaking of SU(2)L×SU(2)R×U(1)B−L→SU(2)L×U(1)Y is by a doublet rather than a triplet. Analyzing the RGE equations, the right handed neutral component of...
Alex Kastanas
(University of Bergen (NO))
24/08/2015, 16:30
Supersymmetry Phenomenology and Experiment
The talk presents searches for the prompt decay of supersymmetric particles in events containing photons or taus and large transverse missing momentum, performed by the ATLAS experiment. The final states considered are particularly motivated in gauge mediated supersymmetry breaking models with a light gravitino as the lightest supersymmetric particle. Results obtained with 20 fb-1 of pp...
Petar Kevin Rados
(University of Melbourne (AU))
24/08/2015, 16:50
Higgs Theory and Experiment
The combined measurements of the properties of the Higgs boson using the ATLAS detector and up to 25 fb-1 of 7 TeV and 8 TeV pp collision data collected in 2011 and 2012, are discussed. The results are obtained combining all channels measured at run 1. They include strengths of production and decay modes, couplings to fermions and bosons, spin and CP properties.
Giovanna Francesca Cottin Buracchio
(University of Cambridge (GB))
24/08/2015, 16:50
Supersymmetry Phenomenology and Experiment
Several supersymmetric models predict massive long-lived supersymmetric particles with lifetimes from fractions of a nanosecond to lifetimes that are effectively stable in the detector. Such particles may be detected through abnormal specific energy loss, disappearing tracks, displaced vertices, long time-of-flight or late calorimetric energy deposits. The talk presents recent results from...
Andrew Williams
(NCBJ)
24/08/2015, 16:50
Particle Cosmology Theory and Experiment
We analyse the sensitivity of the future Cherenkov Telescope Array (CTA) experiment to dark matter annihilations in the galactic centre using the most up to date instrument response functions and background simulation model provided by the CTA Collaboration. We systematically examine the different statistical methods for setting limits using CTA and provide a realistic assessment of the...
Antonio Morais
(Lund University and Aveiro University)
24/08/2015, 16:50
SUSY/String Models
We present a new supersymmetric (SUSY) and non-SUSY versions of a Grand Unified Theory based upon the trinification gauge group ($SU(3)_L\otimes SU(3)_R \otimes SU(3)_C$) and global flavour $SU(3)_F$ symmetry. In contrast to previous realizations of trinification models, the proposed SUSY version automatically provides unification of the Yukawa couplings as well as Higgs-lepton unification by...
Ramon Niet
(Technische Universitaet Dortmund (DE))
24/08/2015, 16:55
Flavor Violation Theory and Experiment
B and D mesons provide an ideal laboratory for measurements of CP violation and searches for CPV beyond the Standard Model. We present recent LHCb results on measurements from several decay modes and based on different techniques, including time-dependent, time-integrated and dalitz analyses.
Bertrand Echenard
(Caltech)
24/08/2015, 17:00
Alternative Theories
We present results from the BaBar experiment on searches
for low-mass new physics. This includes a search for a light CP-odd Higgs
boson (A0) in Upsilon(1S) -> gamma A0, A0 -> ccbar decays. providing
limits on the product branching fraction B(Upsilon(1S) -> gamma A0)xB(A0 -> ccbar)
at the level of 7x10-5 - 2x10-3 for A0 masses between 4.0 GeV and 9.25 GeV; a
search for a dark photon...
Ivan Schmidt
24/08/2015, 17:00
Fundamental and String Theory
After a brief review of the main ideas of gravity with torsion, a scenario allowing a solution of the strong charge parity problem via the Peccei-Quinn mechanism, implemented in gravity with torsion, is presented. In this framework there appears a torsion-related pseudoscalar field known as Kalb-Ramond axion. It is compared with the so-called Barbero-Immirzi axion recently proposed in the...
Flip Tanedo
(UC Irvine)
24/08/2015, 17:10
Particle Cosmology Theory and Experiment
We propose a novel search for dark matter using the directional capabilities of the AMS-02 telescope to identify dark photons coming from dark matter annihilation. Dark matter collects in the core of the Sun and annihilates into dark photons which then decay to known particles on their way to the Earth. For weak-scale dark matter, dark photons of mass MeV -- GeV, and kinematic mixing...
Dr
Sho Iwamoto
(Technion)
24/08/2015, 17:10
Supersymmetry Phenomenology and Experiment
This talk, based on arXiv:1505.02996, focuses on collider searches for long-lived charged particles (LLCPs), i.e., charged particles which are observed stable in the detectors.
Their discovery will be extremely exciting and give significant implication for both particle physics and cosmology.
We studied expected sensitivity of such searches at a future...
Sara Alderweireldt
(University of Antwerp (BE))
24/08/2015, 17:10
Higgs Theory and Experiment
The final LHC Run1 results in the search for a Higgs bosons decaying to bottom quarks performed by CMS is presented. Besides the standard model interpretation, well-motivated models with extended Higgs sectors are also being considered.
Dr
Yukihiro Mimura
(National Taiwan University)
24/08/2015, 17:20
Flavor Violation Theory and Experiment
The recent measurement of the branching fractions of the rare B meson decays, $B_d^0 \to \mu^+\mu^-$ and $B_s^0 \to \mu^+\mu^-$, is one of the most impressive achievements of the LHC experiments. The ratio of the branching fractions is about 2 sigma above the standard model prediction. Although the deviation is not very significant in the current statistical status, it is interesting to study...
Cristina Biino
(INFN Torino (IT))
24/08/2015, 17:20
Alternative Theories
A sample of 17 million fully reconstructed $\pi^0$ Dalitz decays produced in
charged kaon decays in flight collected by the NA48/2 experiment at CERN in
2003-04 is analysed to search for the dark photon ($A$) via the decay chain
$\pi^0 \rightarrow \gamma A$, $A \rightarrow e^+ e^-$.
No dark photon signal is observed, and the most stringent limits on the dark photon mixing parameter in the...
Zhen Liu
24/08/2015, 17:30
Supersymmetry Phenomenology and Experiment
Supersymmetry searches at the LHC are both highly varied and highly constraining, but the vast majority are focused on cases where the final-stage visible decays are prompt. Scenarios featuring superparticles with detector-scale lifetimes have therefore remained a tantalizing possibility for sub-TeV SUSY, since explicit limits are relatively sparse. Nonetheless, the extremely low backgrounds...
Mauro Valli
24/08/2015, 17:30
Particle Cosmology Theory and Experiment
Dwarf spheroidal galaxies (dSphs) are among the faintest objects observed in our Universe, representing an ideal laboratory for Dark Matter (DM) searches.
We review moment-based methods to model pressure-supported spherical systems like dSphs, and critically revisit the so called “mass-anisotropy degeneracy problem”, plaguing the mass profile determination of these galaxies.
We propose a...
Peisi Huang
(University of Chicago/Argonne National Lab)
24/08/2015, 17:30
Higgs Theory and Experiment
We study the correlation between the Higgs trilinear coupling and the nature of Electroweak Phase Transition. We use two examples to illustrate this correlations -- a simplified model where we include higher order terms in the effective potential, and the NMSSM. We find a large deviation in the trilinear coupling from its Standard Model value in a theory that exhibits a strong first order...
Walter Marcello Bonivento
(INFN Cagliari)
24/08/2015, 17:40
Alternative Theories
SHIP is a new general purpose fixed target facility, whose Technical Proposal has been recently submitted to the CERN SPS Committee. In its initial phase, the 400GeV proton beam extracted from the SPS will be dumped on a heavy target with the aim of integrating $2\times 10^{20}$ pot in 5 years. A dedicated detector, based on a long vacuum tank followed by a spectrometer and particle...
Yiming Zhong
(Stony Brook University)
24/08/2015, 17:50
Particle Cosmology Theory and Experiment
The evolution of galactic dark matter halos would be modified if dark matter were self-interacting. The early heat conduction from the halo envelope to the core would enlarge the core size and reduce the central cusps. The late heat conduction from the core to the envelope would collapse the core into a singular state. Previous studies have focused on constraining the velocity independent...
Spencer Chang
(University of Oregon)
24/08/2015, 17:50
Higgs Theory and Experiment
In this talk, I will discuss scenarios of induced electroweak symmetry breaking (EWSB), where the Higgs vacuum expectation value is induced by another EWSB source. These additional sources can be due to another Higgs vev or technicolor sector and can mitigate constraints on beyond the Standard Model theories (e.g. raising the Higgs mass in supersymmetric models). I will discuss the collider...
Harri Waltari
24/08/2015, 18:10
Higgs Theory and Experiment
We study left-right symmetric supersymmetry and the constraints on its Higgs sector from LHC data. The model has a light doubly charged Higgs, whose mass comes from radiative corrections. The LHC bounds on the doubly charged Higgs mass reduce the parameter space significantly. We look at Higgs branching ratios and low energy constraints. We find that the Higgs decay width to bottom quarks can...
Attilio Andreazza
(Università degli Studi e INFN Milano (IT))
25/08/2015, 08:30
Plenary Talks
This talk will focus on Standard Model Higgs results from the ATLAS and CMS experiments.
Radja Boughezal
(Argonne National Laboratory)
25/08/2015, 09:00
Plenary Talks
The future of the high energy physics program will increasingly rely upon precision studies looking for deviations from the Standard Model. Run I of the LHC triumphantly discovered the long-awaited Higgs boson, and there is great hope in the particle physics community that this new state will open a portal onto a new theory of Nature at the smallest scales. A precision study of Higgs boson...
Pietro Slavich
(LPTHE Paris)
25/08/2015, 09:30
Plenary Talks
The measurement of the Higgs-boson mass at the LHC completes our
knowledge of the fundamental parameters of the SM, and imposes important
constraints on the parameter space of its SUSY extensions. To properly exploit
this long-awaited experimental information, high-precision calculations of the
predictions of the SM and its extensions are necessary. In this talk I review
recent advances...
Petar Maksimovic
(Johns Hopkins University (US))
25/08/2015, 11:00
Plenary Talks
This talk will review the status of exotic searches at LHC.
David Simmons-Duffin
(IAS)
25/08/2015, 11:30
Plenary Talks
Recently, a new tool has emerged for studying strongly-coupled Conformal Field Theories, based on the old idea of the Conformal Bootstrap. I will describe how the modern bootstrap (originally motivated by questions about Higgs physics) is providing new quantitative and conceptual results about field theories in diverse dimensions.
Henriette Elvang
(University of Michigan)
25/08/2015, 12:00
Plenary Talks
There has in recent years been remarkable progress in our understanding of the mathematical structure of scattering amplitudes. This will be an overview talk on some of these developments, with particular emphasis on the role of supersymmetry.
Cen Zhang
(Brookhaven National Laboratory)
25/08/2015, 14:30
Higgs Theory and Experiment
The discovery of the Higgs boson allows us to test the standard model at a new level. Ongoing and near future experiments on precision Higgs and EW observables requires a theory for SM deviations. While the kappa framework has been successful as a first attempt, a more consistent theory is required as one moves beyond leading order. In this talk I will summarize recent progress in the Higgs...
Gerald Eigen
(University of Bergen (NO))
25/08/2015, 14:30
Flavor Violation Theory and Experiment
We present a selection of recent studies performed by using the full data sample collected by the BABAR detector. Among them are a measurement of CP asymmetries in the B0-B0bar mixing process by using inclusive dilepton samples, an angular analysis of the B -> K* l+l- decay, which might indirectly probe the presence of beyond-Standard-Model particles in the loop diagrams, and studies of...
Volodymyr Takhistov
(University of California, Irvine)
25/08/2015, 14:30
SUSY/String Models
With LHC not observing superpartners,
minimal supersymmetric versions of the Standard Model (SM) are very constrained.
We consider supersymmetric extensions of the SM in which the
usual R or matter parity gets replaced by another R or non–R discrete symmetry
that explains the observed longevity of the nucleon and solves the µ problem of
MSSM. Such R-parity violating scenarios may lead to...
Paolo Mastrandrea
(Stony Brook and LAPP)
25/08/2015, 14:30
Alternative Theories
Resonant production of two massive bosons (WW, WZ, ZZ and HH) is a smoking gun signature for physics beyond the Standard Model. Searches for diboson resonances have been performed in final states with different numbers of leptons and jets including fat-jets with jet substructure. This talk highlights ATLAS searches for diboson resonances with LHC Run 1 data. First LHC Run-2 results will be...
Prof.
Howard Baer
(University of Oklahoma)
25/08/2015, 14:30
Supersymmetry Phenomenology and Experiment
ELectroweak naturalness requires a SUSY mu parameter ~100-200 GeV
while mHu^2 is driven radiatively to small negative values.
A small mu parameter can be easily generated from large m_3/2 via
radiative breakdown of Peccei-Quinn symmetry.
Highly mixed top squarks may exist in the few TeV range at little cost to naturalness.
Imposing naturalness in both the EW and QCD sectors leads to...
Chris Tunnell
(Nikhef)
25/08/2015, 14:30
Particle Cosmology Theory and Experiment
The XENON program has helped develop the two-phase xenon time-projection-chamber technology into the most powerful means of directly detecting WIMPs. The program currently consists of the XENON100 and XENON1T experiments. The XENON100 experiment completed 225 live-days of data taking in 2012 that resulted, at the time, in the most stringent spin-independent elastic-scattering constrain on...
Kurt Brendlinger
(University of Pennsylvania (US))
25/08/2015, 14:50
Supersymmetry Phenomenology and Experiment
The search for the supersymmetric partners of the Standard Model quarks and gluons is one of the priorities of the ATLAS experiment
in the quest for Beyond the Standard Model signals. Recent results in the channel with two electrons or muons, jets and missing transverse
momentum are presented. The results are obtained using 20/fb of proton-proton collisions recorded by the ATLAS...
Prof.
Bumseok Kyae
(Pusan National University)
25/08/2015, 14:50
SUSY/String Models
We employ both the minimal gravity- and the minimal gauge mediations of supersymmetry breaking at the grand unified theory (GUT) scale in a single supergravity framework,
assuming the gaugino masses are generated dominantly by the minimal gauge mediation effects.
In such a "minimal mixed mediation model,"
a "focus point" of the soft Higgs mass parameter, m_{h_u}^2 emerges
at 3-4 TeV...
Prof.
Matthew Szydagis
(University at Albany)
25/08/2015, 14:50
Particle Cosmology Theory and Experiment
The LUX collaboration has recently re-analyzed its initial WIMP search data, and it continues to lead the search for dark matter candidate particles in the *O*(10-1,000) GeV mass range since the first analysis was released. LUX performs several advanced *in situ* nuclear and electron calibrations of the light and charge yields down to 1 keV of recoil energy, avoiding the need to extrapolate...
Cristina Biino
(INFN Torino (IT))
25/08/2015, 14:55
Flavor Violation Theory and Experiment
The rare decays $K^+ \rightarrow \pi^+ \nu \nu$ are excellent processes to make tests of new physics at the highest scale complementary to LHC thanks to their theoretically cleaness.
The NA62 experiment at CERN SPS aims to collect of the order of 100 events in two years of data taking, keeping the background at the level of 10%.
Part of the experimental apparatus has been commissioned during...
Lydia Brenner
(Nikhef)
25/08/2015, 15:00
Higgs Theory and Experiment
The discovery of the Higgs boson opens many perspectives to explore physics beyond the Standard Model. This talk describes constraints of new physics in a number of models using the combined measurements of the coupling strength of the 125 GeV Higgs particle using the entire ATLAS run-I data. The various models presented include an additional real electroweak singlet, two Higgs doublet models,...
David Schaich
(Syracuse University)
25/08/2015, 15:00
Fundamental and String Theory
Practical lattice discretizations of supersymmetric gauge theories are notoriously difficult to construct in four dimensions. N=4 supersymmetric Yang--Mills (SYM) is the only known 4d theory for which there exists a lattice formulation that exactly preserves a subset of the supersymmetry algebra. This exact supersymmetry has remarkable consequences that are crucial to the feasibility of...
Jordan Damgov
(Texas Tech University (US))
25/08/2015, 15:00
Alternative Theories
Searches for boosted dibosons (WW, WZ, WH, ZH, etc.) may may be sensitive probes of new physics in scenarios where Higgs bosons are composite particles or in certain extra-dimensional models. The recent results of boosted diboson searches with the CMS detector will be presented.
John Kehayias
(Vanderbilt University)
25/08/2015, 15:10
SUSY/String Models
We present a common solution to the puzzles of the light Higgs or quark masses and the need for a shift symmetry and large field values in high scale inflation. One way to protect, for example, the Higgs from a large supersymmetric mass term is if it is the Nambu-Goldstone boson (NGB) of a nonlinear sigma model (NLSM). However, it is well known that NLSMs with nontrivial Kähler transformations...
Antonios Agapitos
(National and Kapodistrian University of Athens (GR))
25/08/2015, 15:10
Supersymmetry Phenomenology and Experiment
A search for supersymmetry in events with one or two soft leptons and large missing transverse momentum is presented, based on 19.7 fb^-1 of 8 TeV pp collisions recorded with the CMS detector. This final state is typical for SUSY scenarios with a small mass splitting between the LSP and the top squark or chargino (compressed mass spectra). A hard Initial State Radiation jet is used to trigger...
Maria Elena Monzani
(SLAC)
25/08/2015, 15:10
Particle Cosmology Theory and Experiment
The nature and origin of Dark Matter is one of the most compelling mysteries of contemporary science. For over two decades, physicists have been trying to detect Dark Matter particles via collisions on target nuclei, with little success.
The LZ collaboration is designing a massive Dark Matter detector, to be installed at the 4850 level of the Sanford Underground Research Facility in Lead,...
Ayan Paul
(INFN, Sezione di Roma)
25/08/2015, 15:20
Flavor Violation Theory and Experiment
The question of the validity of analyzing charmed meson decays to pairs of hadrons within the SU(3) framework has been long and often debated. While there are convincing arguments that small breaking of this symmetry can accommodate for the current experimental results, the inability to compute QCD effects in these modes render it quite impossible to justify with complete authority the...
Jérémy Bernon
(LPSC Grenoble)
25/08/2015, 15:20
Higgs Theory and Experiment
After the discovery of a 125 GeV Higgs boson with properties close to those predicted in the Standard Model (SM), it is crucial to assess the existence of an extended Higgs sector. The framework of the two Higgs doublet models (2HDM) is particularly simple and well suited for such considerations. The alignment limit, realized either through decoupling of the additional Higgs states or the...
Alysson Ferrari
25/08/2015, 15:30
Fundamental and String Theory
We propose a non-anticommutative superspace with the interesting property of relating to Lee-Wick type of higher derivatives theories, which are known for their interesting properties, and have lead to proposals of phenomenologicaly viable higher derivatives extensions of the Standard Model. The deformation of superspace we consider does not preserve supersymmetry or associativity in general,...
Hiroyuki Abe
(Waseda University)
25/08/2015, 15:30
SUSY/String Models
We show some aspects of dynamical supersymmetry breaking (DSB) in super-Yang-Mills (SYM) theories in higher-dimensional space-time compactified on magnetized tori. The profile of background magnetic fluxes and Wilson-lines determines the breaking pattern of gauge symmetries as well as the number (degeneracy) of matter zero-modes in each representation under the remaining symmetries, with which...
Dr
Benjamin Smith
(TRIUMF)
25/08/2015, 15:30
Particle Cosmology Theory and Experiment
DEAP-3600 is a dark matter experiment at SNOLAB in Ontario, Canada, using 3600kg of liquid argon to search for spin-independent interactions of Weakly Interacting Massive Particles (WIMPs). The experiment uses pulse shape discrimination to separate WIMP-like nuclear recoils from the electronic recoils caused by most background events. Nuclear recoils produce more prompt scintillation light...
Jan-Frederik Schulte
(Rheinisch-Westfaelische Tech. Hoch. (DE))
25/08/2015, 15:30
Supersymmetry Phenomenology and Experiment
The results of searches for SUSY production at CMS in events with dilepton final states are presented using up to 20/fb of data from the 8 TeV LHC run of 2012. These include final states with Z bosons decaying to lepton pairs as well as non-resonant same- and opposite-sign lepton pairs. The results are interpreted in the context of several different SUSY model scenarios.
Emanuele Usai
(Hamburg University (DE))
25/08/2015, 15:30
Alternative Theories
We present searches for resonant production of top quark pairs or top- and b quarks, using proton-proton collision data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 8 TeV. The search is performed by measuring the invariant mass distribution of the quark pair and testing for deviations from the expected Standard Model background. Final states with zero, one or...
Donald Austin Belknap
(University of Wisconsin (US))
25/08/2015, 15:40
Higgs Theory and Experiment
The talk will present a summary of the measurement of the Higgs properties using the H->ZZ->4l, H->WW->2l2nu and H->gammagamma decay channels, and the full dataset recorded by the CMS experiment during the LHC Run 1, corresponding to an integrated luminosity of 5.1 fb-1 at a center-of-mass energy of 7 TeV and up to 19.7 fb-1 at 8 TeV. The talk will present the measurements of the Higgs boson...
Lorenzo Feligioni
(CPPM Marseille)
25/08/2015, 15:45
Alternative Theories
Many extensions of the Standard Model predict the presence of particles decaying into a pair of top-quarks, ranging from narrow resonances such as leptophobic topcolor Z’ boson to broader resonances like Kaluza-Klein excitation of the gluon in a Randall-Sundrum model of extra dimensions. The search exploits the technique based on large-radius jets and jet substructure to enhance sensitivity...
Dylan Harries
(University of Adelaide)
25/08/2015, 16:30
SUSY/String Models
Non-minimal supersymmetric models are able to solve some of the naturalness
problems of the minimal supersymmetric standard model (MSSM), such as the need
for large radiative corrections to accommodate a 125 GeV Higgs. Models with an
additional $U(1)'$ symmetry at low energies may raise the tree level Higgs
mass through $F$- and $D$-term contributions, reducing the need for...
Dr
Po-Yan Tseng
(Department of Physics, National Tsing Hua University)
25/08/2015, 16:30
Supersymmetry Phenomenology and Experiment
We perform global fits to
the most recent data (after summer 2014)
on Higgs boson signal strengths
in the framework of the minimal supersymmetric standard model
(MSSM). The heavy supersymmetric (SUSY) particles such as squarks
enter into the loop factors of the $Hgg$
and $H\gamma\gamma$ vertices while other SUSY
particles such as sleptons and charginos also enter into...
Sridhara Dasu
(University of Wisconsin (US))
25/08/2015, 16:30
Flavor Violation Theory and Experiment
In this talk we present analyses involving Higgs bosons and heavy flavors at high transverse momentum by the CMS Experiment. In particular, we show results on searches for top quark flavor-changing neutral-current (FCNC) and top quark flavor-changing Higgs-current (FCHC) decays. In addition, measurements of the Higgs boson decays to leptons and bottom quarks, together with Lepton Flavor...
Tim Stefaniak
(SCIPP, UCSC)
25/08/2015, 16:30
Precision Computations and Monte Carlo Tools, all areas
The public computer tool *HiggsSignals* evaluates the chi-squared compatibility of the Higgs sector predictions of new physics models with the mass and rate measurements of the 125 GeV Higgs boson discovered at the LHC. It is designed for the application to extended Higgs sectors and automatically considers potential signal overlap of multiple Higgs bosons. The chi-squared test takes into...
Florian Bernlochner
(Bonn)
25/08/2015, 16:30
Higgs Theory and Experiment
Recent results on studies of the Higgs boson in the diphoton decay channel are reported including limits on its width through interference effects, a study of its properties in
the context of an effective field theory, and its production in association with missing
transverse energy.
Rachel Houtz
(UC Davis)
25/08/2015, 16:30
Alternative Theories
Given the lack of conventional SUSY signals in the LHC data, a more complicated story may be required to explain weak scale physics. We introduce a new scheme for canceling the quadratic divergence of the Higgs mass by addition of a new gauge boson. We can impose this cancellation between the gauge boson contribution and the top contribution to the Higgs mass at one scale while...
Leonardo Senatore
(Stanford University)
25/08/2015, 16:30
Particle Cosmology Theory and Experiment
The Effective Field Theory of Large Scale Structures (EFTofLSS) is a novel research program that aims at developing a systematic understanding of large scale structures at long distances by expanding in the smallness of the long wavelength perturbations. This program is particular relevant given the importance of large scale structure surveys for our progress in cosmological information in the...
Daisuke Takahashi
(Okinawa Institute of Science and Technology Graduate University)
25/08/2015, 16:50
Higgs Theory and Experiment
We consider the minimal U(1)′ extension of the Standard Model (SM) with conformal invariance at the classical level, where in addition to the SM particle contents, three generations of right-handed neutrinos and a U(1)′ Higgs field are introduced. In the presence of the three right-handed neutrinos, which are responsible for the seesaw mechanism, this model is free from all the gauge and...
Peter Athron
(Monash University)
25/08/2015, 16:50
Precision Computations and Monte Carlo Tools, all areas
FlexibleSUSY is a mathematica and C++ package which can be used to
create a fast and precise spectrum generator for a SUSY or BSM model
chosen the by the user. FlexibleSUSY is distributed with a large
number of models already implemented and the user may also add new
models of there own by creating simple model files. The spectrum
generators created by FlexibleSUSY are very fast and the...
Zheng Sun
(Sichuan University)
25/08/2015, 16:50
SUSY/String Models
We show that in a class of gauge mediation models with tree level R-symmetry breaking, where supersymmetry and R-symmetries are broken by different fields, the gaugino mass either vanishes or finds contribution from loop level R-symmetry breaking. Thus tree-level R-symmetry breaking is either no-go or redundant for phenomenology model building. Attempts to overcome the no-go are discussed.
Arindam Das
(University of Alabama)
25/08/2015, 16:50
Alternative Theories
With the heavy Standard Model (SM) singlet neutrinos, the (inverse) seesaw mechanism provides us with a natural way to incorporate the neutrino mass in the SM. If the heavy neutrinos have their mass of the electroweak scale, they can be produced at the Large Hadron Collider (LHC) through their mixing with the SM light neutrinos. We investigate the heavy neutrino production processes at the LHC...
James Michael Keaveney
(Vrije Universiteit Brussel (VUB) - Interuniversitary Institute for high energies (IIHE) (BE))
25/08/2015, 16:50
Supersymmetry Phenomenology and Experiment
Many theories beyond the Standard Model predict the existence of colored scalar states,
known as sgluons. Sgluons are expected to be copiously pair-produced
at the LHC via strong interactions. In scenarios where they are top-philic, such as SUSY
with Dirac gauginos, sgluons can be sought in multitop events at the LHC. We revisit two LHC Run I analyses
that utilise events with either the...
Sandro Palestini
(CERN)
25/08/2015, 16:55
Flavor Violation Theory and Experiment
Heavy Flavours
Higgs and flavour (Higgs to light lepton+quark couplings, Higgs CPV, Higgs flavour violation)
flavour at the high pT frontier,
flavour related searches,
not trivial SUSY/composite searches (non-degenerate SUSY and not SUSY partners, MFV DM),
top FCNC
with specific emphasis on lepton and quark flavour.
Aoife BHARUCHA
(Université d'Aix-Marseille),
Francesco Dighera
(TU Munich)
25/08/2015, 16:55
Particle Cosmology Theory and Experiment
We will discuss the relic density of TeV-scale wino-like neutralino dark matter in the pMSSM. We have recently developed a framework enabling us to calculate the Sommerfeld enhanced relic density in general pMSSM scenarios. We will present the results of a thorough investigation of certain regions of parameter space, focussing in particular on departures from the well known pure wino scenario:...
John Leslie Almond
(Seoul National University (KR))
25/08/2015, 17:05
Alternative Theories
Searches for heavy neutrino motivated by the discovery of neutrino oscillations become realistic at the LHC. CMS experiment has updated search results for heavy neutrinos at the LHC using the full 2012 data. We have looked for a signature of dileptons and two jets from heavy neutrino decay. In the talk, we report on the search results on heavy neutrino productions.
Jonathan Da Silva
(University of Manchester)
25/08/2015, 17:10
Supersymmetry Phenomenology and Experiment
The U(1) extended supersymmetric standard model (UMSSM) can accommodate a Higgs boson at 125 GeV without relying on large corrections from the top/stop sector. After imposing LHC results on the Higgs sector, on B-physics and on new particle searches as well as dark matter constraints, we show that this model offers two viable dark matter candidates, the right-handed (RH) sneutrino or the...
marcos cardoso rodriguez
(universidade federal rural do rio de janeiro)
25/08/2015, 17:10
SUSY/String Models
We build the complete supersymmetric version of a $SU(3)_{C}\otimes
SU(2)_{L}\otimes U(1)_{Y^{\prime}}\otimes U(1)_{B-L}$, where $B$ and $L$
are the usual baryonic and leptonic numbers, gauge model
($SUSY321 Y^{\prime}(B-L)$) with total lepton number $L=+1$ using the superfield formalism. This
model is interesting because generate masses for all neutrinos; there is good candidate to Dark...
Ayan Paul
(INFN, Sezione di Roma)
25/08/2015, 17:10
Precision Computations and Monte Carlo Tools, all areas
With new data, and hopes for observation of new physics, well on the way with the LHC Run II it is necessary to have computational tools at hand that will link experimental observables to model parameters through a global fit done within a rigorous statistical framework. We present SusyFit, a Markov Chain Monte Carlo based Bayesian Analysis tool that can perform global fits with electroweak...
Daniel Egana-Ugrinovic
(Rutgers University)
25/08/2015, 17:10
Higgs Theory and Experiment
Effective field theory provides an excellent way to organize deviations from the Standard Model Higgs properties, in the case of an extended Higgs sector.
In this talk, we present the low energy theories of the Higgs sector for some of the most popular beyond the standard model UV completions. For brevity, we only consider the Higgs sector extended with a real singlet (xSM) and with a...
Mr
Sungwoo Hong
(University of Maryland, College Park)
25/08/2015, 17:15
Particle Cosmology Theory and Experiment
We consider theories where dark matter is composed of a thermal relic of weak scale mass, whose couplings to the Standard Model (SM) are however too small to give rise to the observed abundance. Instead, the abundance is set by annihilation to light hidden sector states that carry no charges under the SM gauge interactions. In such a scenario the constraints from direct and indirect detection,...
Naoki Yamatsu
(Osaka University)
25/08/2015, 17:20
Alternative Theories
I will talk about an SO(11) gauge-Higgs grand unified model in the Randall-Sundrum warped space. I will show that orbifold boundary conditions and a brane scalar field correctly break the SO(11) grand unified group into the standard model gauge group; the zero modes of the SO(11) bulk gauge field are corresponding to the SM gauge fields and the SM Higgs field; the zero modes of an SO(11)...
Joshua Berger
(SLAC)
25/08/2015, 17:30
Supersymmetry Phenomenology and Experiment
We study the phenomenology of models that contain resonances yielding final states with leptons and jets. Recent searches for a first-generation leptoquark by the CMS collaboration have shown around 2.5 sigma deviations from Standard Model predictions in both the eejj and e nu jj channels. Furthermore, the eejj invariant mass distribution has another 2.8 sigma excess from the CMS right-handed...
Julian Michael Bouffard
(State University of New York (US))
25/08/2015, 17:30
Higgs Theory and Experiment
Since the discovery of a Higgs boson by the ATLAS and CMS experiments at the LHC, the emphasis has shifted towards measurements of its properties and the search for less sensitive channels in order to determine whether the new particle is the Standard Model (SM) Higgs boson. Of particular importance is the direct observation of the coupling of the Higgs boson to top quarks. In this talk a...
Kin-Wang Ng
(Academia Sinica)
25/08/2015, 17:30
SUSY/String Models
We discuss the flat directions in the context of split supersymmetry, including the effects of supergravity. The discovered shift symmetry along certain flat directions may have implications to the inflation model and the baryon asymmetry of the Universe.
Sven Heinemeyer
(CSIC (Santander, ES))
25/08/2015, 17:30
Precision Computations and Monte Carlo Tools, all areas
We review the status and the prospects for (N)MSSM Higgs precision calculations, as incorporated into the code FeynHiggs.
Mr
YAMAMOTO Kengo
(Department of physics, Osaka University)
25/08/2015, 17:35
Alternative Theories
Gauge-Hiigs Unification is the candidate of Beyond Standard Model. The gauge symmetry of system can be spontaneously broken down by dynamics of Wilson line phase of gauge fields themselves in Gauge-Higgs Unification. This symmetry breaking pattern is highly depend on the boundary condition set which is imposed on fields for extra dimensional directions and in present gauge-Higgs study, these...
Dr
Thomas Rizzo
(SLAC)
25/08/2015, 17:35
Particle Cosmology Theory and Experiment
We attempt to build a model that describes the Fermi galactic gamma-ray excess
(FGCE) within a UV-complete Supersymmetric framework; we find this to be highly
non-trivial. At the very least a successful Supersymmetric explanation must have
several important ingredients in order to fit the data and satisfy other theoretical and
experimental constraints. Under the assumption that a single...
Dr
Ezequiel Rodriguez Jauregui
(Universidad de Sonora)
25/08/2015, 17:50
Higgs Theory and Experiment
In this work, the analysis of the Higgs sector in the context of the minimal $S(3)$-invariant extension of the Standard Model ($S(3)$SM) is performed. Three Higgs fields, which are SU(2) doublets, and CP invariant, are considered to compute the exact and analytical physical Higgs boson masses. Furthermore, within this model an explicit form of the trilinear self-couplings $\lambda_{ijk}$ are...
Jason Evans
(University of Minnesota)
25/08/2015, 17:55
Particle Cosmology Theory and Experiment
Motivated by the coincidence between the Hubble scale during inflation and the typical see-saw neutrino mass scale, we present a supergravity model where the inflaton is identified with a linear combination of right-handed sneutrino fields. The model accommodates an inflaton potential that is flatter than quadratic chaotic inflation, resulting in a measurable but not yet ruled out...
Maria Moreno Llacer
(Georg-August-Universitaet Goettingen (DE))
25/08/2015, 18:10
Higgs Theory and Experiment
Since the discovery of a Higgs boson by the ATLAS and CMS experiments at the LHC, the emphasis has shifted towards measurements of its couplings in order to determine whether the new particle is the Standard Model Higgs boson. Combined analyses of the Higgs boson production and decay rates as well as of its coupling strengths to vector bosons and fermions have been performed using 7 TeV and 8...
Emmanuel Stamou
(Weizmann Institute of Science)
26/08/2015, 08:30
Plenary Talks
In this talk I discuss aspects of physics related to flavour dynamics. I focus on observables appearing to be most promising as far as their sensitivity to beyond the Standard Model physics is concerned in view of the awaited data from Run-II of the LHC. I shall look into three complementary directions that are already being pursued individually: One, B- and K-physics probes with new-physics...
Yael Shadmi
(Technion)
26/08/2015, 09:00
Plenary Talks
Flavor dependent soft terms can be consistent with low-energy bounds on
flavor violation, and affect LHC searches for supersymmetry.
I'll discuss such spectra and their LHC implications using both
a bottom-up and a top-down approach, focusing in particular on
Flavored Gauge Mediation models.
Yury Kolomensky
(UC Berkeley/LBNL)
26/08/2015, 09:30
Plenary Talks
We will review the experimental status of searches for Lepton Flavor Violation. We will discuss searches in muon and tau decays, at colliders as well as fixed target facilities. Status and prospects for the future experiments currently in preparation will be reviewed as well.
Thomas Blake
(CERN)
26/08/2015, 10:15
Plenary Talks
I will review the state of quark flavour physics at the start of run 2 of the LHC. The talk will summarise recent measurements from the LHC experiments and the B-factories on rare b-hadron decays and measurements of CP violation in the Bd and Bs systems.
Prof.
Harry Nelson
(UCSB)
26/08/2015, 10:45
Plenary Talks
A variety of experiments devoted to the laboratory detection of dark matter are underway, approved for the future, and planned. I will review these experiments and the prospective sensitivities.
Stephen Martin
(Northern Illinois University)
27/08/2015, 09:00
Plenary Talks
I will discuss the status of weak scale supersymmetry at the beginning of the LHC Run 2.
Kyu Jung Bae
(Univ. of Oklahoma)
27/08/2015, 09:30
Plenary Talks
In supersymmetric models, the lightest neutralino explains the whole dark matter abundance and predicts observable signals in direct and indirect searches. However, recent experiments constrain the natural parameter space for neutralino dark matter. On the other hand, if the neutralino is thermally underabundant, the axion is a good candidate for accompanying dark matter to make up the rest of...
Nathaniel Craig
(UC Santa Barbara)
27/08/2015, 10:00
Plenary Talks
This talk will survey models of ``neutral naturalness'', in which the weak scale is stabilized against radiative corrections via partner particles whose gauge quantum numbers differ from their Standard Model counterparts.
Brando Bellazzini
(CEA-Saclay)
27/08/2015, 11:00
Plenary Talks
I will present an overview of composite Higgs models in light of the discovery of the Higgs boson. I will classify the various models based on their predictions for the Higgs potential, review the basic ingredients of each of them, and quantify the amount of tuning needed. I will review the generic predictions of this class of models that can be tested at the LHC.
Prof.
Gordon Kane
(University of Michigan)
27/08/2015, 11:30
Plenary Talks
Beginning from a few discrete assumptions, such as compactifying the M-theory fluxless sector on a G2 manifold to the MSSM, we show moduli are successfully stabilized in a de Sitter vacuum, and supersymmetry is broken. The gravitino mass is calculated to be about 50 TeV, and gaugino masses are always suppressed to about a TeV (gluino 1.5 TeV, wino 620 GeV, bino 450 GeV). is included by...
Raphael Flauger
(The University of Texas at Austin)
27/08/2015, 12:00
Plenary Talks
I will review the recent CMB measurements by the Planck as well as BICEP/Keck collaboration and discuss their implications for early universe cosmology.
james gray
(Virginia Tech)
27/08/2015, 14:00
I will give a brief summary of the status of the heterotic approach to string phenomenology. I will begin by giving a broad-brush overview of what has and has not been achieved in this field. I will then describe two recent pieces of work on smooth heterotic compactifications to indicate the type of progress which is currently being made.
Adrian Perieanu
(Hamburg University (DE))
27/08/2015, 14:00
Higgs Theory and Experiment
This talk will focus on the ATLAS and CMS Prospects for Higgs Physics at the HL-LHC, covering expected future performance and sensitivity in Higgs physics during the HL-LHC era.
Dr
Andrew Chen
(U. of Michigan)
27/08/2015, 14:00
Flavor Violation Theory and Experiment
The top quark pairs at Tevatron are produced mainly through proton anti-proton
interaction. The asymmetry of this production is intriguing. The search for
new physics beyond the Standard Model is on going using CDF RUN II data. The
latest results of top quark production asymmetry, searching for Fermiophobic
Higgs and FCNC will be given at the conference.
Yuto Minami
(University of Tokyo (JP))
27/08/2015, 14:00
Supersymmetry Phenomenology and Experiment
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarises recent ATLAS results on inclusive searches for promptly decaying supersymmetric squarks and gluinos in events containing jets, missing transverse momentum with and without light leptons. The results presented utilise 20/fb of 8 TeV...
Matthias Hamer
(CBPF - Brazilian Center for Physics Research (BR))
27/08/2015, 14:00
Precision Computations and Monte Carlo Tools, all areas
The analysis of the data collected by the major LHC experiments during the LHC Run I has put strong constraints on supersymmetric models. We study the parameter space of the constrained Minimal Supersymmetric Standard Model (CMSSM) in a global fit, taking into account the non-observation of supersymmetry at the LHC, Higgs mass and rate measurements, as well as several cosmological and low...
Malgorzata Kazana
(NCBJ Warsaw (PL))
27/08/2015, 14:00
Alternative Theories
We present results of searches for new physics in event with inclusive dijet and multijet final states using up to 20 fb-1 of data collected during the 8 TeV LHC run. These include searches for narrow dijet resonances, new physics using diet angular distribution, as well as pair production of new resonances decaying to two or more final state jets. New results with the Run 2 data will be also...
Harikrishnan Ramani
(Yang Institute Of Theoretical Physics)
27/08/2015, 14:00
Particle Cosmology Theory and Experiment
Baryogenesis at the electroweak scale requires the EW phase transition to be first order, and the discovery of the 125 GeV Higgs confirms that it is second order in the standard model. A myriad of extensions to the Higgs sector have been proposed to still allow for EW baryogenesis. Most approaches to testing the success of these BSM extensions employ a high temperature, small coupling...
Sadia Khalil
(Kansas State University (US))
27/08/2015, 14:15
Alternative Theories
Unlike the most traditional SUSY searches, there exist many SUSY models that do not produce large missing transverse momentum (MET), such as compressed spectra, long live particles, stealth SUSY, and R-parity violating (RPV) models. Searches for RPV model via the LQD couplings have been performed at Run1, using event signatures of two opposite sign same flavor dileptons (electrons, muons,...
Jorge de Blas
(INFN Rome)
27/08/2015, 14:20
Precision Computations and Monte Carlo Tools, all areas
We present results of a bayesian fit to the Wilson coefficients of the
Standard Model gauge invariant dimension-6 operators involving one or
more Higgs fields, using data on electroweak precision observables and
Higgs boson signal strengths.
Mrs
Kimiko Yamashita
(Ochanomizu University)
27/08/2015, 14:20
Particle Cosmology Theory and Experiment
We propose a new baryogenesis scenario, which occurs during reheating after inflation. During reheating, the oscillation of the inflaton field breaks thermal equilibrium, providing one of the necessary conditions for baryogenesis. The inflaton field is assumed to couple to a complex scalar field which carries baryon number, whose self coupling breaks B, C and CP, providing the remaining two...
Chaowaroj Wanotayaroj
(University of Oregon (US))
27/08/2015, 14:20
Supersymmetry Phenomenology and Experiment
The results of supersymmetric searches at the LHC are typically presented in the context of simplified models, with a single specific production channel
and decay mode for the supersymmetric particles. In full SUSY models, several production and decay channels are expected, and the limits
on supersymmetric particle masses might be weaker. In this talk, results from the searches...
Mr
Mateusz Kamil Iskrzynski
(University of Warsaw)
27/08/2015, 14:25
Flavor Violation Theory and Experiment
The simplest Grand Unified Theory (GUT) embedding the Standard Model (SM) is based on the SU(5) symmetry. The unification of gauge couplings, failing in the SM, takes place in the R-parity conserving Minimal Supersymmetric Standard Model (MSSM).
We investigated the possibility of satisfying the minimal SU(5) boundary conditions also for Yukawa matrices at the GUT scale within the MSSM. We...
Maikel de Vries
(Mainz University)
27/08/2015, 14:30
Alternative Theories
The robustness of translating effective operator constraints to BSM theories crucially depends on the mass and coupling of BSM particles. This is especially relevant for hadron colliders where the partonic centre of mass energy is around the typical energy scales of natural BSM theories. The caveats in applying the limits are discussed using Z' and G' models, illustrating the effects for a...
Adarsh Pyarelal
(University of Arizona)
27/08/2015, 14:30
Higgs Theory and Experiment
While current ATLAS and CMS measurements exclude a light charged Higgs ($m_{H^\pm}<160$ GeV) for most of the parameter region in the context of the MSSM scenarios, these bounds are significantly weakened in the Type II 2HDM once the exotic decay channel into a lighter neutral Higgs, $H^\pm \to AW/HW$, is open. In this study, we examine the possibility of a light charged Higgs produced in...
Todd Garon
(UW-Madison)
27/08/2015, 14:30
SUSY/String Models
We consider the phenomenology of deflected mirage mediation, a "mixed" supersymmetry breaking scenario motivated by string compactifications in light of results from LHC8, PLANCK, and LUX. In this scenario, there are additional gauge mediation contributions along with the standard gravity and anomaly mediation contributions of the KKLT-motivated mirage mediation scenarios, which drastically...
Chang Sub Shin
(Rutgers University)
27/08/2015, 14:40
Particle Cosmology Theory and Experiment
We discuss a new mechanism for baryogenesis, in which the baryon asymmetry is generated by the lightest particle in another sector, for example the supersymmetric particle (LSP), decaying to quarks via baryonic-number-violating interactions. As a specific example, we use a supersymmetric axion model with an axino LSP and baryonic R-parity violation. This scenario predicts large R-parity...
Florent Sylvain Lacroix
(University of California Riverside (US))
27/08/2015, 14:40
Supersymmetry Phenomenology and Experiment
We present results of searches for gluino and squark production with the CMS detector in final states containing jets, missing transverse momentum, and possibly leptons. The results are based on 20 fb-1 of data collected during the 8 TeV LHC run. Various discriminants based on event kinematics are employed to suppress standard-model backgrounds. The results are interpreted in the context of...
Matt Dolan
(SLAC)
27/08/2015, 14:40
Precision Computations and Monte Carlo Tools, all areas
We present the prospects for SUSY searches at the LHC, $e^+e^-$ colliders, based on our pMSSM10 analysis as presented in arXiv:1504.03260. This talk is submitted on behalf of the MasterCode collaboration. It is not clear yet who will actually give the talk.
Gabriel David Palacino Caviedes
(York University (CA))
27/08/2015, 14:45
Alternative Theories
Search for highly ionizing particles such as magnetic monopoles or long-lived particles with an electric charge more than the elementary charge has been subject for many experiments over the past decades. Unique signatures for such particles require techniques to be developed on the trigger, identification and reconstruction with tracking detectors and calorimeters. This talk reports searches...
Olga Felix
27/08/2015, 14:50
Flavor Violation Theory and Experiment
We analyse the Yukawa matrices structure, $\widetilde{ \bf Y}_{ _{1,2} }^{q}$, by assuming a four-zero texture ansatz for their definition, in the frame of the general 2-Higgs Doublet Model. Explicit and exact expressions for $\widetilde{ \bf Y}_{ _{1,2} }^{q}$ are shown. Naturally, these expressions have a functional structure like to Cheng and Sher ansatz. Furthermore, we perform a...
Dr
Yue Zhao
(Stanford)
27/08/2015, 14:50
SUSY/String Models
We propose a solution to (little) hierarchy problem based on SUSY breaking induced in asymmetric Chern-Simons theory. In such theory superparticles are lifted while standard model particles remain untouched. It starts with supergravity in $AdS_n$, where n can be 3,4,5. One can further take flat spacetime limit for $AdS_3$ or $AdS_4$, or one can study RS model in $AdS_5$.
In AdS space, the...
Cecile Sarah Caillol
(Universite Libre de Bruxelles (BE))
27/08/2015, 14:50
Higgs Theory and Experiment
The most recent results from CMS on the search for a neutral Higgs bosons decaying into a tau or a muon pair will be presented. The production of a neutral Higgs boson via the gluon fusion or through associate production with b quarks are considered.
George Zahariade
(UC Davis)
27/08/2015, 15:00
Particle Cosmology Theory and Experiment
We present a manifestly local, diffeomorphism invariant and locally Poincare invariant formulation of vacuum energy sequestering. In this theory, quantum vacuum energy generated by matter loops is cancelled by auxiliary fields. The auxiliary fields decouple from gravity almost completely. Their only residual effect is an *a priori* arbitrary, finite contribution to the curvature of the...
Samuel Louis Bein
(Florida State University (US))
27/08/2015, 15:00
Supersymmetry Phenomenology and Experiment
We interpret CMS new physics search results within the context of SUSY models, such as natural simplified models and the phenomenological MSSM (pMSSM), a generic 19-dimensional parametrization of the MSSM at the SUSY scale that captures most of the MSSM's phenomenological features. Searches in various final state topologies are included, and up to 20 fb-1 of data from the 8TeV LHC run are...
Tim Stefaniak
(SCIPP, UCSC)
27/08/2015, 15:00
Precision Computations and Monte Carlo Tools, all areas
We shall present results of a multi-dimensional fit of the phenomenological Minimal Supersymmetric Standard Model (pMSSM) to the LHC Run 1 results. The emphasis of our study lies in particular on the MSSM Higgs sector. We take into account various experimental constraints and measurements from Higgs searches at the LHC and LEP experiments, using the tools *HiggsBounds* and *HiggsSignals*....
Lovedeep Kaur Saini
(Kansas State University (US))
27/08/2015, 15:00
Alternative Theories
CMS searches for a possible compositeness of electrons and muons using data from Run1 at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 /fb, are presented. In these searches, excited leptons are assumed to be produced via contact interactions in conjunction with a standard model lepton and decaying via gauge interactions. The decays considered are l* ->...
Harold Steinacker
(University of Vienna)
27/08/2015, 15:10
SUSY/String Models
We discuss the low-energy physics which arises on stacks of squashed brane solutions of SU(M) N=4 SYM, deformed by a cubic soft SUSY breaking potential. A brane configuration is found which leads to a low-energy physics similar to the standard model in the broken phase, assuming suitable VEV's of the scalar zero modes. Due to the triple self-intersection of the (fuzzy) branes, the matter...
Sabine Kraml
(LPSC Grenoble)
27/08/2015, 15:10
Higgs Theory and Experiment
Searches in final states with two leptons plus missing transverse energy, targeting supersymmetric particles or invisible decays of the Higgs boson, were performed during Run 1 of the LHC. Recasting the results of these analyses in the context of the Inert Doublet Model (IDM) using MadAnalysis 5, we show that they provide constraints on inert scalars that significantly extend previous limits...
Andrey Kamenshchikov
(Institute for High Energy Physics (RU))
27/08/2015, 15:15
Alternative Theories
Leptoquarks are hypothetical particles with non-zero lepton and baryon numbers, predicted by many extensions of the Standard Model, and can provide an explanation for the similarity between the quark and lepton sectors. Searches for pair-produced scalar leptoquarks have been performed with final states including charged leptons. In this talk, recent ATLAS results on searches for leptoquarks...
Cristian Ignacio Pena Herrera
(California Institute of Technology (US))
27/08/2015, 15:20
Supersymmetry Phenomenology and Experiment
We present results of searches for SUSY production at CMS in events with one or two isolated photons, possibly coming from a Higgs decay, using up to 20/fb of data from the 8 TeV LHC run of 2012. The results are interpreted in the context of several different SUSY models, in particular gauge-mediation models, with the gravitino as the lightest supersymmetric particle.
Angelo Monteux
(Rutgers University)
27/08/2015, 15:20
Particle Cosmology Theory and Experiment
I will discuss thermal production of (pseudo-)goldstinos, the Goldstone fermions emerging from (multiple-) SUSY breaking, when the reheating temperature is well below the superpartner masses. In such a case, the production during the early matter-dominated era is more important than after reheating. Depending on the SUSY breaking scale, goldstinos are produced by freeze-in or freeze-out...
Prof.
Matthias Neubert
(Johannes Gutenberg University Mainz)
27/08/2015, 15:30
Higgs Theory and Experiment
We present a detailed analysis of the rare exclusive Higgs-boson decays into a single vector meson and a photon and investigate the possibility of using these processes to probe the light-quark Yukawa couplings. We work with an effective Lagrangian with modified Higgs couplings to account for possible new-physics effects in a model-independent way. The $h\to V\gamma$ decay rate is governed by...
Neil Barrie
27/08/2015, 15:40
Particle Cosmology Theory and Experiment
We propose a simple mechanism for generating ordinary luminous and dark matter during cosmic inflation. This scenario involves an extension of the Standard Model through the introduction of a dark matter candidate/s and an anomalous U(1)_X gauge group. The general framework developed is found to be able to replicate both the observed matter-antimatter asymmetry and the dark-to-visible matter...
Ms
Ursula Laa
(LPSC Grenoble)
27/08/2015, 16:30
Supersymmetry Phenomenology and Experiment
A mostly right-handed sneutrino as the lightest supersymmetric particle (LSP) is an interesting dark matter candidate, leading to LHC signatures which can be quite distinct from those of the conventional neutralino LSP. Using SModelSv1.0.1 for testing the model against the limits published by ATLAS and CMS in the context of so-called Simplified Model Spectra (SMS), we investigate to what...
Dr
Yuhsin Tsai
(UC Davis)
27/08/2015, 16:30
Particle Cosmology Theory and Experiment
I will discuss the possibility of producing DM bound states at the LHC, emphasizing on two popular scenarios that contain large DM self-couplings: the higgsinos in the lambda-SUSY model, and the DM particles in the self-interacting DM (SIDM) framework. Instead of generating missing energy signatures, these dark bound states have annihilation decays into visible particles in the detector and...
Sven Heinemeyer
(CSIC (Santander, ES))
27/08/2015, 16:30
Flavor Violation Theory and Experiment
We analyze the effects of (squark and slepton) flavor violation induced by RGE running
from the GUT scale within the CMSSM. We show that these effects, in particular in the
scalar quark sector, can induce corrections to electroweak precision observables that can set
an upper limit on the scalar mass parameter m_0.
Rob Knoops
(KU Leuven (BE))
27/08/2015, 16:30
SUSY/String Models
We explore the phenomenology of a supergravity theory based on a gauged R-symmetry.
The model contains a chiral multiplet S, which can be the string dilaton or a compactification modulus, that has a gauged shift symmetry.
Supersymmetry is then broken by a combination of F-term and D-term breaking, and allows for a tunable (parametrically small and positive) cosmological constant.
We...
Petra Merkel
(Fermi National Accelerator Lab. (US))
27/08/2015, 16:30
Higgs Theory and Experiment
Searches for additional Higgs-like bosons are reported for Higgs boson masses between 145 GeV and 1 TeV. The search is based on proton-proton collision data corresponding to an integrated luminosity of up to 5.1 inverse fb at the centre-of-mass energy of 7 TeV and up to 19.3 inverse fb at 8 TeV, recorded by the CMS experiment at the LHC. Several final states of the WW, ZZ, gammagamma, and...
Marcin Chrzaszcz
(University of Zurich (CH))
27/08/2015, 16:30
Alternative Theories
Thanks to its forward acceptance and good resolution, the LHCb experiment is competitive in searches for heavy long-lived particles beyond the Standard Model. We report a search for the stau particle with the LHCb detector and give our prospects for searches of Hidden Valley particles.
James Gainer
(University of Florida (US))
27/08/2015, 16:30
Precision Computations and Monte Carlo Tools, all areas
We provide a readily generalizable procedure for determining the number of sparticle mass hierarchies in a given SUSY model. As an application, we analyze the gravity-mediated SUSY breaking scenario with various combinations of GUT-scale boundary conditions involving different levels of universality among the gaugino and scalar masses. For each of the eight considered models, we provide the...
Jan Hajer
(HKUST)
27/08/2015, 16:50
Higgs Theory and Experiment
Searching for Higgs bosons beyond the Standard Model (BSM) is one of the most important missions for hadron colliders. As a landmark of BSM physics, the MSSM Higgs sector at the LHC is expected to be tested up to the scale of the decoupling limit of O(1) TeV, except for a wedge region centered around tan β ~ 3–10, which has been known to be difficult to probe. In this talk, we present a...
Jonathan Kozaczuk
(TRIUMF)
27/08/2015, 16:50
Particle Cosmology Theory and Experiment
Many extensions of the Standard Model, such as the NMSSM, can predict new, relatively light pseudoscalars with Higgs-like couplings to Standard Model fermions. In particular, simple models of this type in which the pseudoscalar also couples to dark matter can explain the GeV Galactic Center excess as observed by the Fermi Large Area Telescope. In this talk, I will discuss the prospects for...
Mr
Bob Zheng
(University of Michigan)
27/08/2015, 16:50
Precision Computations and Monte Carlo Tools, all areas
I will discuss the prospect of extending the reach for squarks and gauginos via associated production at a $\sqrt{s} = 100$ TeV proton-proton collider, given 3 ab$^{-1}$ integrated luminosity. Depending on the gluino mass, the discovery reach for squarks in associated production with a gluino can be up to 40 TeV for compressed spectra (small gluino-LSP mass splitting), and up to 32 TeV for...
Mr
Andres Quinto
(Universidade Federal do ABC)
27/08/2015, 16:50
SUSY/String Models
In this work, we investigate the consequences of the Renormalization Group Equation (RGE) in the determination of the effective superpotential in a supersymmetric model with an arbitrary parameter of gauge and, the impact of this improved calculation in the study of dynamical symmetry breaking. We consider an $\mathcal{N}=1$ supersymmetric theory, including an Abelian Chern-Simons...
Quentin Philippe Python
(Vrije Universiteit Brussel (BE))
27/08/2015, 16:50
Alternative Theories
A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at sqrt(s) = 8 TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of approximately 20 inverse femtobarns. Events are selected with an electron and a muon, with no requirement of a shared vertex, and with di-lepton...
Christopher Bock
(Ludwig-Maximilians-Univ. Muenchen (DE))
27/08/2015, 16:50
Supersymmetry Phenomenology and Experiment
Many supersymmetry models feature gauginos and also sleptons with masses less than a few hundred GeV. These can give rise to observables direct pair production rates at the LHC. The talk presents results from searches for gaugino and slepton pair production in final states with leptons, using 20/fb of 8 TeV pp collision data collected by the ATLAS detector at the LHC, with an emphasis on...
Elena Ginina
27/08/2015, 16:55
Flavor Violation Theory and Experiment
Already at tree-level the theoretical prediction for the cross section of
$P P \to {\tilde q_i} {\tilde q_i}^*, \tilde q = \tilde u, \tilde d; i = 1, \ldots, 6$, can have
a strong dependence on squark flavour mixing parameters. Such a case is not taken
into account in any published LHC study up to now. As a logical next step we
calculate the leading one-loop corrections to that...
Ms
Mahsana Haleem
(DESY Zeuthen)
27/08/2015, 17:05
Alternative Theories
Dark sector models, explaining the presence of dark matter in the Universe, predict signatures that can be tested at the LHC. Among those predicted, a smoking gun signature (when the dark sector particles are light) is the presence of a collimated pair of leptons or hadrons, called lepton-jets. Depending on the coupling between the dark sector and the Standard Model sector, the lepton-jets can...
Geoffrey Gilles
(Univ. Blaise Pascal Clermont-Fe. II (FR))
27/08/2015, 17:10
Higgs Theory and Experiment
Charged Higgs bosons, H+, are predicted by many models with an extended Higgs sector. This presentation reports ATLAS studies and results of searches for charged Higgs bosons in various final states. Exclusion limits are given and interpreted in the context of the Minimal Supersymmetric extension of the Standard Model.
Soumya Rao
(University of Adelaide, Adelaide)
27/08/2015, 17:10
Particle Cosmology Theory and Experiment
We explore the possibility of detecting WIMP(Weakly Interacting Massive Particle) Dark
Matter(DM) interacting via photon through its electric or magnetic dipole moments occuring at
one loop, in so called Beam Dump experiments. We focus on one such experiment in
particular, E613 in Fermilab, which involves a 400 GeV proton beam incident on a Tungsten
target producing DM particles in this...
Sho Maruyama
(Fermi National Accelerator Lab. (US))
27/08/2015, 17:10
Supersymmetry Phenomenology and Experiment
Results for SUSY searches in the electroweak sector are summarized, based on ~20 fb-1 of 8 TeV proton-proton collisions collected by the CMS detector. A variety of complementary final state signatures and methods are used to probe gaugino and slepton production. This talk includes the latest results from the first ever search for SUSY production through vector boson fusion processes in a...
Paul Douglas Jackson
(University of Adelaide)
27/08/2015, 17:10
Precision Computations and Monte Carlo Tools, all areas
Signal events where multiple missing neutral particles are present in a final state represent challenging topologies to search for new physics at the LHC. The key to any search is the ability to separate background-like events from signal-like events. Identifying such signal-like events, and extracting their properties, is exacerbated by
a lack of knowledge of the particle masses and some...
Malgorzata Kazana
(NCBJ Warsaw (PL))
27/08/2015, 17:20
Alternative Theories
Long-lived massive particles are predicted in many supersymmetric and exotic models. The existence of such particles would manifest in the detector by unique signatures such as specific energy loss, late signal in the muon or calorimeter system, displaced vertices or non-pointing photons, appearing or disappearing tracks. The recent results of searches for long-lived signatures with the CMS...
Yutaro Sato
(Nagoya University)
27/08/2015, 17:20
Flavor Violation Theory and Experiment
Various decays of B mesons have sensitive to the physics beyond the Standard Models.
New particles such as SUSY particles might enter in the loop diagram.
Charged scalar particles such as charged Higgs bosons might contribute in addition to the W boson.
We present results constraining the new physics with a large data samples
that contains 772 million BB pairs collected at the Upsilon(4S)...
Giovanni Grilli di Cortona
(SISSA)
27/08/2015, 17:30
Supersymmetry Phenomenology and Experiment
We analyse the mass reach for electroweakinos at future hadron colliders and their interplay with direct detection experiments. Motivated by the LHC data, we focus on split supersymmetry models with different electroweakino spectra. We find for example that a 100 TeV collider may explore Winos up to $\sim 7$ TeV in low scale gauge mediation models or thermal Wino dark matter around $3$ TeV in...
Dr
Jing Ren
(University of Toronto)
27/08/2015, 17:30
Particle Cosmology Theory and Experiment
With the LHC Higgs discovery, we are strongly motivated to study gravitational interactions of the Higgs boson. In this talk, we study the unique dimension-4 operator of the Higgs with Ricci curvature in the effective field theory. This dimensionless nonminimal coupling affects weak gauge boson scattering amplitudes and yields perturbative unitarity violation in high energy. The same operator...
Csaba Balazs
(Monash University)
27/08/2015, 17:30
Precision Computations and Monte Carlo Tools, all areas
I review the Bayesian naturalness prior which incorporates the most widely used fine-tuning measures as special cases. Then I present the amount of Bayesian fine-tuning over parameter space slices of the Constrained MSSM, the Constrained NMSSM, and an 11 parameter NMSSM scenario.
243.
Searches for long-lived particles in Hidden Valley scenarios with the ATLAS detector at the LHC
Anna Mastroberardino
(Universita della Calabria (IT))
27/08/2015, 17:35
Alternative Theories
Searches for long-lived neutral particles decaying into hadronic jets have been performed with the ATLAS detector. The search strategy depends on the lifetime and mass of such particles, and experimental techniques to reconstruct decay vertices in various ATLAS detector components have been developed. This talk summarizes ATLAS searches for long-lived particles and their connection to hidden...
YUN JIANG
(UC Davis)
27/08/2015, 17:50
Particle Cosmology Theory and Experiment
With protection by an extra Z2 symmetry, non-SM Higgs boson could be a possible DM candidate. As an example, we consider the singlet extension of the two-Higgs-doublet model. Intriguingly, the dark matter interaction with nucleons in the model could violate isospin symmetry and thus lead to a solution to alleviating the conflict between LUX and other direct detection experiments....
Gouranga Kole
(Tata Inst. of Fundamental Research (IN))
27/08/2015, 17:50
Higgs Theory and Experiment
Recent results on searches for charged Higgs bosons at the LHC by the CMS collaboration are presented. Charged Higgs bosons have bean searched for in top quark decays for lower mass and directly produced for higher masses. Charged Higgs boson decays into tau nu, cs and tb have been exploited. Results are based on approximately 20 fb-1 of data collected at sqrt(s) 8 TeV at the LHC.
Doojin Kim
(University of Florida)
27/08/2015, 17:50
Precision Computations and Monte Carlo Tools, all areas
I will discuss a new method of precision top quark mass measurement using bottom quark energy at the LHC. The relevant technique is based upon the observation that if a certain heavier particle decays into a massless visible particle and another particle, the energy peak in the laboratory-frame energy distribution of the visible particle is the same as its corresponding monochromatic energy...
Fernando Quevedo
(The Abdus Salam International Centre for Theoretical Physics)
28/08/2015, 09:00
Plenary Talks
Abstract:
A phenomenological analysis is performed regarding the soft susy breaking
scenarios obtained by moduli stabilised compactifications of IIB string
theory in which soft terms can be computed explicitly. Sequestered and
unsequestered scenarios are discussed. In particular late cosmological
decay of moduli fields put strong phenomenological constraints on susy
dark matter scenarios...
Mirjam Cvetic
(University of Pennsylvania)
28/08/2015, 09:30
Plenary Talks
We present developments in F-theory compactifications with an emphasis on the implications for particle physics. We spell out techniques to construct globally consistent F-theory compactifications to four-dimensions that result in particle physics gauge symmetries, such as $SU(5)$ **GUT** and Standard Model, chiral matter families and Yukawa couplings. We highlight the first globally...
Ralph Blumenhagen
(Max-Planck-Institut fuer Physik)
28/08/2015, 10:00
Plenary Talks
We present a scheme of tree-level string moduli stabilization via geometric and non-geometric fluxes that is motivated by realizing recent ideas on F-term axion monodromy inflation. We find a set of non-supersymmetric vacua that show a specific scaling type behavior allowing for gaining parametric control over the various mass scales. Generic features and limitations of this approach are...
Joseph Polchinski
(UC Santa Barbara)
28/08/2015, 11:00
Plenary Talks
String theory has few or no stable nonsupersymmetric vacua, only metastable ones. Antibranes are a simple source of supersymmetry breaking, as in the KKLT model, but various arguments have been given that these lead to rapid instability. Proper analysis of the system requires identifying the correct effective field theory at various scales. We do so, and find no evidence of rapid instability.
Christoph Weniger
(University of Amsterdam)
28/08/2015, 11:30
Plenary Talks
The currently leading hypothesis for dark matter in the Universe are Weakly
Interacting Massive Particles (WIMPs), and the best studied example for a WIMP
is the lightest neutralino in supersymmetric theories. Searches for WIMP
self-annihilation products are a promising way to identify these particles for
the first time. Recent data from gamma-ray, radio, neutrino and...
Stephen West
(Royal Holloway, University of London)
28/08/2015, 12:00
Plenary Talks
I will review non-standard dark matter models including alternative genesis mechanisms and nuclear dark matter.
Tom Rudelius
(Harvard University)
28/08/2015, 14:00
Particle Cosmology Theory and Experiment
Since the BICEP2 detection of B-mode polarization announced in March 2014, there has been a renewal of interest in models of large-field inflation. Axions have gained popularity in this regard, as they may provide a way to realize large-field inflation consistent with the principle of naturalness. However, recent work has revealed additional challenges facing axion inflation, which are...
David Schaich
(Syracuse University)
28/08/2015, 14:00
Alternative Theories
Lattice gauge theory enables non-perturbative investigation of strongly interacting systems from first principles. In recent years this approach has produced increasingly valuable information about strongly coupled gauge theories beyond QCD, in particular systems exhibiting non-perturbative near-conformal dynamics. I will present an overview of recent lattice results relevant to the...
Anders Kvellestad
(University of Oslo)
28/08/2015, 14:00
Supersymmetry Phenomenology and Experiment
Collider searches for supersymmetric models with R-parity violation (RPV) generally focus on the decay of the (effectively) lightest supersymmetric particle (LSP) through RPV operators. The signal then depends both on the nature of the LSP and the relevant RPV operators. Here we identify scenarios where RPV decays of charginos are important, either because the R-parity conserving decay modes...
Asher Berlin
(University of Chicago)
28/08/2015, 14:00
Precision Computations and Monte Carlo Tools, all areas
Most models of WIMPs that possess sizable tree-level interactions with the electroweak bosons of the Standard Model are under ever increasing pressure from the relentless Moore's law like progression of today's direct detection experiments. This has led many to consider various scenarios in which the dark matter candidate instead possesses 1 and 2-loop induced couplings to quarks and gluons at...
Dai Kobayashi
(Tokyo Institute of Technology (JP))
28/08/2015, 14:00
Flavor Violation Theory and Experiment
Hints of new physics observed in B-physics have lead to considerable interests on the flavor sector and lepton flavor violating (LFV) effects observable at the LHC. Searches for LFV decays of the Standard Model particles or new heavy particles have been conducted at the ATLAS experiment. Run 1 LFV search results are presented in this talk, together with searches for other signatures at ATLAS....
Sven Heinemeyer
(CSIC (Santander, ES))
28/08/2015, 14:20
Precision Computations and Monte Carlo Tools, all areas
We present recent result for the decay of (heavy) SUSY Higgs bosons into SUSY particles
(sfermions, charginos, neutralinos), based on a full one-loop calculation. We analyze in
particular the dependence on the complex parameters of the model. We find corrections at
the level of 10-20% or higher.
Emma Torro Pastor
(University of Washington (US))
28/08/2015, 14:20
Supersymmetry Phenomenology and Experiment
The violation of R-parity allows new signatures to be pursued in the search for supersymmetry at the LHC. This talk presents the latest results from the ATLAS experiment using 20/fb of pp LHC collision data of searches for R-parity violating SUSY scenarios with lepton number violation. The results presented are for dedicated searches for resonances, as well as a systematic analysis of the...
Andrea Tesi
28/08/2015, 14:20
Higgs Theory and Experiment
The presence of extra scalar singlets is a feature of several motivated extensions of the Standard Model, and the mixing of such a singlet with the Higgs boson is allowed to be quite large by current experiments. I will consider both direct and indirect searches, and quantify the current constraints as well as the prospects for future hadron and lepton machines. The results are first presented...
Prof.
Qaisar Shafi
(University of Delaware)
28/08/2015, 14:25
Particle Cosmology Theory and Experiment
We explore the implications of a new minimal supersymmetric hybrid inflation model in which the MSSM µ term arises from a coupling of the Higgs doublets to the inflaton sector, with |µ| required to be greater than the gravitino mass m_G. Successful inflation with the scalar spectral index ns = 0.96−0.97, is followed by a relatively high reheat temperature, T_RH ≳ 10^12 GeV, in the presence of...
Dr
Stefania Vecchi
(INFN Ferrara)
28/08/2015, 14:25
Flavor Violation Theory and Experiment
Many models extending the SM to account for dark matter or explain inflation predict the existence of O(1) GeV mass particles with long lifetimes. LHCb's detection capabilities for detached vertices are exploited to search for particles decaying to muon pairs. New results are presented.
Huaqiao Zhang
(Chinese Academy of Sciences (CN))
28/08/2015, 14:30
Alternative Theories
We present new results on searches for massive top and bottom quark partners using proton-proton collision data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 8 TeV. These fourth-generation vector-like quarks are postulated to solve the Hierarchy problem and stabilize the Higgs mass, while escaping constraints on the Higgs cross section measurement. The...
Gabriel Lee
(Technion)
28/08/2015, 14:40
Precision Computations and Monte Carlo Tools, all areas
The MSSM leads to precise predictions of the properties of the light Higgs boson degrees of freedom that depend on only a few relevant supersymmetry breaking parameters. There is an upper bound on the mass of the lightest neutral Higgs boson, which for a supersymmetric spectrum of the order of a TeV, is barely above the measured M_h = 125 GeV at the LHC. Raising this bound by considering a...
Brett David Jackson
(University of Pennsylvania (US))
28/08/2015, 14:40
Supersymmetry Phenomenology and Experiment
The violation of R-parity allows new signatures to be pursued in the search for supersymmetry at the LHC. This talk presents the latest results from the ATLAS experiment using 20/fb of pp LHC collision data of searches for R-parity violating SUSY scenarios with baryon number violation. The searches look for an excess of events with high jet multiplicities or resonances in fully hadronic final...
Prof.
Seongchan Park
(SKKU and KIAS)
28/08/2015, 14:45
Particle Cosmology Theory and Experiment
The only observed elementary scalar, the Higgs, is examined as a source of cosmological inflation. I would discuss how the collider data on Higgs would imply for the cosmology and how the latest cosmological data would affect the precision measurement of particle physics, especially in the top quark mass measurement and the Higgs quartic coupling measurement, based on Higgs inflation framework.
Masato Yamanaka
(Nagoya University)
28/08/2015, 14:50
Flavor Violation Theory and Experiment
We proposed a new charged lepton flavor violation (CLFV) process, $\mu^- e^- \rightarrow e^- e^-$ in a muonic atom, as one of the promising processes to search for new physics beyond the standard model [1]. It was found that the attractive interaction of leptons with the nucleus in the muonic atom enhances the transition rate of the $\mu^- e^- \rightarrow e^- e^-$ process. We report on our...
Kristina Anne Looper
(Ohio State University (US))
28/08/2015, 14:50
Higgs Theory and Experiment
We present the results of searches for non-Standard Model decays of the 125 GeV Higgs boson, including decays to dark sector bosons, lepton flavour violating and flavour changing decays, and decays to a light pseudoscalar neutral Higgs boson (a) predicted by the next-Minimal-Supersymmetric-Standard-Model.
Jun Guo
(Shanghai Jiao Tong University (CN))
28/08/2015, 15:00
Alternative Theories
Title : Searches for non-MSSM top/bottom quark partners with the ATLAS detector at the LHC
Abstract : The naturalness is a paradigm for theories beyond the Standard Model (BSM), incorporating mechanism to cancel mass divergence for the Higgs boson. The presence of fermionic top/bottom quark partners, usually referred to as vector-like quarks (VLQs), may be an important ingredient for such...
Christopher West
(Univ. of California Santa Barbara (US))
28/08/2015, 15:00
Supersymmetry Phenomenology and Experiment
The latest results from searches for R-parity violating supersymmetry with the CMS detector will be reviewed. We present results using up to 20 fb-1 of data from the 8 TeV LHC run. Interpretations of the experimental results in terms of production of squarks, gluinos, charginos, neutralinos, and sleptons within R-parity violating SUSY models are presented.
Marcos A Garcia Garcia
(University of Minnesota)
28/08/2015, 15:05
Particle Cosmology Theory and Experiment
Since the building-blocks of supersymmetric models include chiral superfields containing pairs of effective scalar fields, a multifield approach is particularly appropriate for models of inflation based on supergravity. We discuss two-field effects in no-scale supergravity models motivated by string compactifications, and show how they can alter the model predictions for the scalar spectral...
Prof.
Joe Sato
(Saitama University)
28/08/2015, 15:15
Flavor Violation Theory and Experiment
We consider the case that μ-e conversion signal is discovered but other charged lepton flavor violating (cLFV) processes will never be found. In such a case, we need other approaches to confirm the μ-e conversion and its underlying physics without conventional cLFV searches.
We study R-parity violating (RPV) SUSY models as a benchmark. We briefly review that
our interesting case is realized...
Ahmed Ismail
(Argonne National Laboratory/University of Illinois at Chicago)
28/08/2015, 15:20
Higgs Theory and Experiment
Double Higgs production is a unique collider process, enabling the determination of the Higgs self-coupling. However, it is exceedingly rare in the Standard Model, due to the cancellation between the standard triangle and box contributions to the amplitude. I will demonstrate an analytic understanding of this cancellation, and its implications for the impact of new physics on Higgs pair...
McCullen Sandora
(CP3-Origins)
28/08/2015, 15:25
Particle Cosmology Theory and Experiment
We investigate how long wavelength inflationary fluctuations can cause the background field to deviate from classical dynamics. For generic potentials, we show that, in the Hartree approximation, the long wavelength dynamics can be encapsulated by a two-field model operating in an effective potential. The latter is given by a simple Gaussian integral transformation of the original inflationary...
Conor Henderson
(University of Alabama (US))
28/08/2015, 15:30
Alternative Theories
This talk will present the most recent results of high mass resonance searches in the diphoton final state. The talk will include results from Randall Sundrum graviton searches (Exotica). Those searches are based on the full 2012 data collected from pp collisions at a center of mass energy of 8 TeV, corresponding to an integrated luminsosity of 19.6 \fb. Such searches are essential to address...
Sunghoon Jung
(Korea Institute for Advanced Study (KIAS))
28/08/2015, 15:40
Higgs Theory and Experiment
We discuss new striking resonance shapes of MSSM heavy Higgs bosons from the resonance-continuum interference with a relative phase: pure resonance dips, nothingness and enhanced pure peaks. We derive conditions for them and devise the modified narrow width approximation(NWA) to work with non-zero imaginary parts. Importantly, ttbar resonance searches at the LHC are crucially impacted. But we...
Xabier Marcano
(IFT-UAM/CSIC)
28/08/2015, 16:30
Flavor Violation Theory and Experiment
Within low scale seesaw mechanism, in contrast to standard type-I seesaw,
one can get compatible with data light neutrinos with the addition of low scale heavy Majorana neutrinos that can still have large Yukawa couplings, leading to new potentially interesting phenomenology. Taking the Inverse Seesaw model as an explicit realization of this kind of models, we study different aspects of this...
Seng Pei Liew
(University of Tokyo)
28/08/2015, 16:30
Supersymmetry Phenomenology and Experiment
Recent Supersymmetry (SUSY) collider search results have reported intriguing excesses at the 8 TeV run of the LHC. An excess of statistical significance 2.6 sigma in the invariant mass distribution of the opposite-sign same-flavor (OSSF) lepton pair has been found by the CMS collaboration (off-Z excess). Similar final state, albeit with different distribution of invariant mass, has been...
Malgorzata Kazana
(NCBJ Warsaw (PL))
28/08/2015, 16:30
Precision Computations and Monte Carlo Tools, all areas
We identify a benchmark point in the CMSSM's heavy stau-coannihilation region, which is favored by experiments, and demonstrate that it could be accessible to the LHC at s√=14 TeV with 300/fb of integrated luminosity via a golden decay measurement. With Monte-Carlo, we simulate sparticle production and subsequent golden decay at the event level and perform pseudo-measurements of sparticle...
David Curtin
(University of Maryland)
28/08/2015, 16:30
Alternative Theories
Theories of uncolored naturalness can realize untuned solutions to the hierarchy problem while avoiding LHC current exclusion bounds on colored top partners. Their unusual signatures demonstrate the range of phenomena that can connected to stabilizing the electroweak scale, motivating searches for displaced vertices, exotic Higgs decays and emerging jets. I will give an overview of how to...
Anthony DiFranzo
(UC Irvine / Fermilab)
28/08/2015, 16:30
Particle Cosmology Theory and Experiment
We discuss options and challenges associated with building viable models of Vector Dark Matter which interact with the Standard Model via the Higgs boson. Higgs portals are often treated with an effective operator, here we instead discuss possible UV complete models to replace the effective operator. The primary focus will be a model where the portal is generated radiatively. We further...
Myeonghun Park
(Asia Pacific Center for Theoretical Physics (APCTP) (KR))
28/08/2015, 16:50
Supersymmetry Phenomenology and Experiment
In this talk I will explain how we can enhance sensitivities for the degenerated SUSY mass spectra, especially for a natural supersymmetric framework.
Rebecca Leane
(University of Melbourne)
28/08/2015, 16:50
Particle Cosmology Theory and Experiment
Effective field theory (EFT) formulations of dark matter interactions are a convenient and popular way to quantify LHC bounds on dark matter. However, some EFT operators considered do not respect the weak gauge symmetries of the Standard Model. These operators break down at the electroweak scale, rather than the energy scale of new physics, and are invalid at LHC energies. We carefully...
Ran Lu
28/08/2015, 16:50
Precision Computations and Monte Carlo Tools, all areas
Recently we proposed the $J_{E_T}$ algorithm in which jets are defined as
subsets of event maximizing some jet functions. In this talk I will discuss
how to generalize the concept to study more complicated configurations,
focusing on the two-prong objects, and its application in studying W/Z/H
decay.
Graham Cree
(Carleton)
28/08/2015, 16:50
Higgs Theory and Experiment
The results of searches for high mass Higgs bosons decaying to diboson (ZZ,WW,yy) final states by the ATLAS experiment are reported. In absence of the presence of a signal in the data, exclusion limits are presented.
Philipp Sicking
(TU Dortmund)
28/08/2015, 16:55
Flavor Violation Theory and Experiment
The recent measurement of high energy extragalactic neutrinos by the IceCube
Collaboration has opened a new window to probe non-standard neutrino properties. Among
other effects, sterile neutrino altered dispersion relations (ADRs) due to shortcuts in an extra
dimension can significantly affect astrophysical flavor ratios. We discuss an MSW-like resonant conversion arising from geodesics...
Christopher Verhaaren
(University of Maryland, College Park)
28/08/2015, 17:00
Alternative Theories
The impressive sensitivity of the LHC to new colored states has begun to constrain the simplest solutions to the hierarchy problem. Taking naturalness and experiment at face value, we are led to consider models that can address the hierarchy problem without light colored partners to the standard model fermions. I consider three representative models with colorless top partners and detail how...
Dr
Valentin Jonathan Hirschi
(SLAC)
28/08/2015, 17:10
Precision Computations and Monte Carlo Tools, all areas
We present NLO QCD accurate predictions of colored scalar pair production matched to parton showers, within a simplified model that can accommodate the case of stop and sgluon pair production. The computation is performed fully automatically within the MadGraph5_aMC@NLO framework, starting from the Lagrangian renormalization with FeynRules and NLOCT down to event generation. This work paves...
Matthew Dolan
(SLAC National Accelerator Laboratory)
28/08/2015, 17:10
Particle Cosmology Theory and Experiment
We present the prospects for the searches for DM at the LHC, future $e^+e^-$ colliders and direct detection experiments, based on our pMSSM10 analysis as presented in arXiv:1504.03260. This talk is submitted on behalf of the MasterCode collaboration. It is not clear yet who will actually give the talk.
Arne-Rasmus Drager
(Hamburg University (DE))
28/08/2015, 17:10
Supersymmetry Phenomenology and Experiment
Searches for supersymmetric models with a compressed mass spectrum are presented using data samples corresponding to integrated luminosities of about 19.7 fb−1, collected at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC. Compressed mass spectra, where multiple SUSY particles are nearly degenerate in mass, present a unique challenge to SUSY searches at the LHC. Such spectra...
JoAnne Hewett
(SLAC)
28/08/2015, 17:10
Higgs Theory and Experiment
Just as renormalizable Simplified Models can be used alongside of
effective field theories for the study of dark matter interactions, Simplified
Models can be used to describe new physics associated with
the Higgs boson. The objective is for the Simplified Model to
capture some of the new Higgs physics associated with a wide
range of UV-complete theories. Such models allow for...
Dr
Franklin Potter
(Sciencegems.com)
28/08/2015, 17:20
Flavor Violation Theory and Experiment
A different finite subgroup of SU(2) for each lepton and each quark family leads to the first-principles determination of the mixing angles for neutrinos, quarks, and their PMNS and CKM mixing matrices. For example, the neutrino $\theta_{13}$ = 8.56$^{\circ}$ and normal hierarchy are predicted. Connections of these subgroups to the j-invariant of elliptic modular functions (and the Monster...
Mr
Ofri Telem
(Technion)
28/08/2015, 17:20
Alternative Theories
We present the first realization of a “twin Higgs” model as a holographic composite Higgs model. Uniquely among composite Higgs models, the Higgs potential is protected by a new standard model (SM) singlet elementary “mirror” sector at the sigma model scale f and not by the composite states at mKK, naturally allowing for mKK beyond the LHC reach. As a result, naturalness in our model cannot be...
Bohdan Grzadkowski
(University of Warsaw)
28/08/2015, 17:30
Particle Cosmology Theory and Experiment
I will discuss an extension of the Standard Model by an additional U(1) gauge
group and a complex scalar Higgs portal. As the scalar is charged under this gauge factor
this simple model supplies a vector dark matter candidate satisfying LUX bounds, the
observed relic abundance and limits from direct dark matter searches. An additional Higgslike
state, that may be heavier or lighter than...
Debtosh Chowdhury
(INFN, Roma)
28/08/2015, 17:30
Supersymmetry Phenomenology and Experiment
A degenerate supersymmetric sparticle spectrum can escape constraints from flavor physics and at the same time evading the limits from the direct searches if the degeneracy extends to the gaugino sector. Inspired by this, we consider a scenario where all the soft terms have approximately a common mass scale at $M_{\text{SUSY}}$ while allowing for splittings within $\mathcal{O}(10\%)$. As a...
Francesca Ricci-Tam
(University of California Davis (US))
28/08/2015, 17:30
Higgs Theory and Experiment
A new boson of mass 125 GeV has been discovered at the LHC. Within the present experimental uncertainties the properties of the new boson are in good agreement with the expectation for a standard model (SM) Higgs boson. The discovered SM-like Higgs boson may however be just one of several Higgs bosons, predicted by theories beyond the SM. Searches for additional neutral Higgs bosons beyond the...
Ennio Salvioni
(University of California Davis (US))
28/08/2015, 17:40
Alternative Theories
In UV-complete realizations of the Twin Higgs mechanism, exotic fermions charged under both SM and twin gauge symmetries appear. Some of these states carry visible color, and can therefore be produced with sizable rates at hadron colliders. The decays of these exotic quarks give rise to striking signatures, which involve a combination of prompt and displaced objects. We present an analysis of...
sonia el hedri
(JGU Mainz)
28/08/2015, 17:50
Particle Cosmology Theory and Experiment
We present a general classification of minimal models where the Dark Matter coannihilates with another particle X. Besides this new particle, such coannihilation processes typically require the existence of a mediator, M. Assuming tree-level and renormalizable interactions, we construct all the possible combinations of Dark Matter, X and M that respect gauge and Lorentz invariance. Our...
Jing Shu
(Institute of Theoretical Physics, Chinese Academy of Science)
28/08/2015, 18:00
We consider a simple model to explain the recent diboson excess observed by ATLAS and CMS Collaborations in the ``General Composite Higgs" framework with the coset $SO(5)/SO(4) (SU(2)_L \times SU(2)_R)$. The $SU(2)_L$ triplet vector boson $\rho_L$ with mass range of $1.8 \sim 2$ TeV, which would be produced through the Drell-Yan process with sizable diboson decay branching ratio, can account...
Jing Shu
(Institute of Theoretical Physics, Chinese Academy of Science)
29/08/2015, 09:00
Plenary Talks
In this talk, I will first give a heuristic sketch of the intrinsic connection between electroweak baryogenesis & Higgs physics, based on the fact that baryon asymmetry and elementary particle masses are generated simultaneously during the strongly 1st order phase transition. For the strongly 1st order EW phase transition, I will use a super master formula to demonstrate that either it...
Hideki Okawa
(University of Tsukuba (JP))
29/08/2015, 09:30
Plenary Talks
The ATLAS and CMS Collaborations have discovered a Higgs boson in 2012. Remaining questions are to understand the property of the Higgs sector with precision, and to search for signs of physics beyond the Standard Model. Flavor studies and search for rare decays of the Higgs boson are promising probes to search for new physics. This talk presents an overview of the results of such studies at...
Tristan Arnoldus Du Pree
(CERN)
29/08/2015, 10:00
Plenary Talks
This talk will focus on Beyond Standard Model Higgs results from the ATLAS and CMS experiments.
Tomohiko Tanabe
(The University of Tokyo)
29/08/2015, 11:00
Plenary Talks
The discovery of the Higgs boson has sparked interest in future electron-positron colliders, such as the ILC, CLIC, FCC-ee, and CEPC, where the Higgs boson could be studied in great detail. The talk will review the prospects for the precise measurements of the Higgs boson, the top quark, and selected topics on new particle searches including light supersymmetric particles without color...
Liantao Wang
(University of Chicago (US))
29/08/2015, 11:45
Plenary Talks
Since the discovery of the Higgs, there have been much discussion about future of high energy physics, centering on next steps at the LHC and next generation colliders. This leads to new proposals and related studies. In this talk, I will review the physics cases of various options being considered, focusing on hadron colliders.
Joseph David Lykken
(Fermi National Accelerator Lab. (US))
29/08/2015, 12:30
Plenary Talks
A thematic summary of the conference and outlook on possible futures
sonia el hedri
(JGU Mainz)
Alternative Theories
We review recent theoretical constraints on models with thermal dark matter. We consider scenarios where the dark matter annihilates via neutral and charged bosons. The latter, annihilation via e.g. colored scalars, is common is supersymmetric scenarios. These theoretical constraints are compared with the increasingly stringent experimental constraints.
