Conveners
Parallel: Accelerator Technologies 2
- Emilio Nanni
Parallel: Neutrino Physics 2
- Minerba Betancourt
Parallel: Theory 2
- Jakob Moritz (University of Wisconsin Madison (US))
- Yuta Hamada (KEK)
Parallel: Top Physics 2
- Ian Lewis (The University of Kansas)
Parallel: Dark Sectors (Direct/Indirect)
- Theresa Fruth (University of Sydney)
Parallel: Leptoquarks, VLQs and other BSM
- David Sperka (Boston University (US))
Parallel: Hadron Physics 1
- Rukmani Mohanta
Parallel: Exotic Searches 1
- Matthew Daniel Citron (University of California Davis (US))
Parallel: Quark Flavor 2
- Alexey Petrov (University of South Carolina)
Parallel: Higgs 1
- Maria Cepeda (CIEMAT)
Parallel: Hadron Physics 2
- Matthew Herndon (University of Wisconsin Madison (US))
Parallel: Instrumentation 2
- Tae Jeong Kim (Hanyang University (KR))
Parallel: Theory 4
- Anjan Giri
- Zhen Liu (University of Minnesota (US))
Parallel: Exotic Searches 2
- Matthew Daniel Citron (University of California Davis (US))
Parallel: Higgs 2
- Abdollah Mohammadi (University of Wisconsin Madison (US))
Parallel: Quark Flavor 3
- Matthew Herndon (University of Wisconsin Madison (US))
Parallel: Astrophysics 2
- Lu Lu (University of Wisconsin-Madison)
Parallel: Instrumentation 3
- Georg Steinbrueck (Hamburg University (DE))
Parallel: Hadron Physics 3
- Rukmani Mohanta
Parallel: Astrophysics 4
- Walter Winter
Parallel: Exotic Searches 3
- Federico Leo Redi (Universitร degli Studi e INFN Milano (IT))
Parallel: Top Physics 3
- Kevin Black (University of Wisconsin-Madison)
Parallel: Computing AI/ML 2
- Garrett Merz (UWisconsin-Madison)
Parallel: Dark Sectors at Colliders 3
- Tulika Bose (University of Wisconsin Madison (US))
The theoretical predictions for the $D-\bar{D}$ mixing parameters fall significantly short of experimental measurements, with discrepancies spanning several orders of magnitude. This divergence is largely attributed to the GlashowโIliopoulosโMaiani (GIM) mechanism, which suppresses leading-order contributions. However, higher-order corrections and nonperturbative effects have the potential to...
We apply the Transformer architecture to explore the vast theory space of two-dimensional Rational Conformal Field Theories (RCFTs) spanned by their tensor products. Our data features the primary conformal dimension and the central charge of the RCFTs from different families, most of which come from the affine Kac-Moody algebra. Constructing the tensor product models based on RCFTs is often...
Current and future accelerator-based neutrino facilities, leveraging intense neutrino beams and advanced detectors, aim to precisely determine neutrino properties and probe signals of weakly interacting beyond the Standard Model physics. Achieving discovery-level precision and fully exploring the physics potential of these experiments critically depends on the accuracy of our understanding of...
Many new physics models predict the existence of heavy vector bosons which can decay hadronically, making these important signatures in the search for new physics. Searches for such resonances have been performed in various final states. This talk summarises the latest ATLAS searches for this topic.
Ann M Wang, SLAC, for the LZ Collaboration
The LUX-ZEPLIN (LZ) experiment has been collecting data since 2021 to search for evidence of dark matter interactions and other rare physics phenomena using a dual-phase time projection chamber (TPC) filled with 7 tonnes of active xenon. The TPC is surrounded by a veto system designed to reject radioactive and muon backgrounds. The experiment is...
The Particle Physics Project Prioritization Panel (P5), a decadal strategic planning exercise of the Particle Physics Community, has released their final report. The report is based on input from โSnowmass,โ a scientific study to define the most important questions for the field of particle physics and identify promising opportunities to address them. Taking input from Snowmass, P5 lays out a...
The production of high-mass ๐-lepton pairs constitutes a very effective process to probe the Standard Model flavour sector and to search for new physics. The first measurement of the high-mass $\tau \bar{\tau}$ production cross section is presented, performed by the ATLAS Collaboration with the dataset of 140 fb-1 of pp collisions at $\sqrt{s} = 13$ TeV. New physics models are constrained...
800 MHz bulk niobium superconducting RF cavities are a fundamental, and sizeable, component of the FCC machine at all operating points. In the Booster, for Z, W, and H operating points, there are 112 cavities in 28 cryomodules. For TTbar operation, there will be a total of 448 cavities in the booster in 112 cryomodules, The FCC cavity performance specifications currently sit at the upper limit...
The exceptionally large dataset collected by the ATLAS detector at the highest proton-proton collision energies provided by the LHC enables precision testing of theoretical predictions using an extensive sample of top quark events. Recent measurements include total and differential top quark cross sections, as well as measurements of associated top quark production. This contribution presents...
The Short-Baseline Near Detector (SBND) is a 112-ton scale Liquid Argon Time Projection Chamber (LArTPC) neutrino detector positioned in the Booster Neutrino Beam at Fermilab, as part of the Short-Baseline Neutrino (SBN) program. The detector is currently collecting neutrino beam data. Located only 110 m from the neutrino production target, SBND is exposed to a very high flux of neutrinos and...
SABRE is an international collaboration that will operate similar particle detectors in the Northern (SABRE North) and Southern Hemispheres (SABRE South). This innovative approach distinguishes possible dark matter signals from seasonal backgrounds, a pioneering strategy only possible with a southern hemisphere experiment. SABRE South is located at the Stawell Underground Physics Laboratory...
The Weak Gravity Conjecture (WGC), an important proposal for consistency of quantum gravity, states a relation between gravity and Abelian gauge interactions of a consistent EFT. In flat space, the WGC necessitates existence of a charged particle with charge-to-mass ratio larger than that of the extremal black holes. However, the statement needs revision in general spacetimes. In this talk, I...
The flavor space of particles produced in collider environments provides informative quantum correlations. However, generally there is no first-principle calculation of the flavor state of the meson pair produced at colliders. In this work we construct a complementary set of measurements on the flavor state ultilizing the oscillation and decay of the meson pair, providing a systematic way to...
Recent results on Vector Like Quarks/Excited Fermions at CMS
The unprecedented size of the dataset collected by the CMS detector at the LHC allows us to explore increasingly rare top quark production modes and high precision measurements of the more copious ones. We present various measurements of the top quark production in different production modes, including those in which the top quarks are produced in association with electroweak bosons. The...
We will report the status of the milliQan experiment at CERN. The milliQan "bar" detector was completed in June 2023 and has been taking physics data since then. The milliQan "slab" detector was completed in Fall of 2024 and is being commissioned. We will give an update on the readiness of the slab detectorfor physics data taking. Finally, we will present first physics results on the search...
Fine, regular, and star triangulations (FRSTs) of 4-dimensional reflexive polytopes generate toric varieties, within which Calabi-Yau threefolds can be embedded as hypersurfaces. We use transformers---deep learning models originally developed for language modeling---to generate FRSTs of polytopes of varying sizes. Our method shows promising scalability with polytope size and can be...
The T2K experiment's primary off-axis near detector, ND280, has the essential role of constraining the main systematic uncertainties that affect neutrino oscillation measurements. Among the leading sources of these uncertainties are neutrino-nucleon interaction cross sections, which must be more precisely understood to fully exploit the potential of current and future long-baseline neutrino...
We present a preliminary lattice based on a bottom up design for a rapidly cycling synchrotron (RCS) accelerator chain for a multi-TeV muon collider based at Fermilab. The RCS rings range in circumference from 6.28 km (that of the Tevatron) to 15.5 km (the current estimate for the maximum that can be accommodated at the Fermilab site). Each ring is either a conventional RCS (consisting of...
The non-leptonic $B$-meson decays serve as excellent ground to test the Standard Model for example, how well are flavor symmetries such as isospin and flavor SU(3) realised in data, and their study is also important for new physics searches. As it has been observed, the analysis of $B \to PP$ decays where $B = \{B^0, B^+, B_s^0\}$ and $P = \{ \pi, K \}$ under the flavor SU(3) symmetry...
The Standard Model of Particle Physics explains many natural phenomena yet remains incomplete. Vectorlike quarks (VLQs) and leptoquarks (LQs) lie at the heart of many extensions to the Standard Model seeking to address the Hierarchy Problem, or the flavour sector anomalies. This talk will present the new results from searches with the ATLAS detector.
The top-quark mass is one of the key fundamental parameters of the Standard Model that must be determined experimentally. Its value has an important effect on many precision measurements and tests of the Standard Model. The Tevatron and LHC experiments have developed an extensive program to determine the top quark mass using a variety of methods. In this contribution, the top quark mass...
The recently proposed Swampland Cobordism Conjecture predicts the existence of new non-supersymmetric objects in string theory. We argue that the asymptotic profile of a conjectured target space domain wall separating the type IIA and type IIB string theories can be characterized in terms of a string worldsheet interface with different GSO projections on each side. Similar considerations hold...
Particle accelerators are typically constrained in intensity of a beam due to a phenomenon known as the dynamic aperture (DA). ย This DA is typically determinedย by the elemental components of the lattice under consideration and is often constricted by the presence of nonlinear elements, such as sextupoleย magnets. ย However, the lattice may often be represented by an order $n$ Taylor map, which...
The SUB-Millicharge ExperimenT (SUBMET) is designed to search for sub-millicharged particles produced in proton fixed-target collisions at J-PARC. The detector, positioned 280 meters downstream of the target, consists of two layers of stacked scintillator bars coupled to photomultiplier tubes (PMTs). The dominant background arises from random coincidences between the two detector layers,...
A deep understanding of neutrino-target interactions is crucial to reduce the systematic uncertainties for oscillation parameter measurements. We investigate the effect of final-state interactions (FSI) in the charge current quasi-elastic (CCQE) channel by reconstructing the neutrino energy using the calorimetric method. A selection of events with 1 proton, 0 pion, and any number of neutrons...
In recent years, a number of charmonium-like states have been observed
above the open-charm threshold in various experiments. Their properties often go
against our expectations for regular charmonium states, making their
interpretation difficult. With BESIII, we are a leading contributor to the
experimental studies of the so-called XYZ states โ studying Y-states directly in
e+e-...
This talk will present recent results from the ATLAS experiment on measurement of beauty and charm hadron production and decay properties. Measurements of D meson production and of associated production of $J/psi$ with other objects at $\sqrt{s} = 13$ TeV will be reported, as well as measurements of $B^0$ meson lifetime and of properties of $B^0_{(s)}\to\mu^+\mu^-$ rare decays. Parallel...
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. The Standard Model makes a definite prediction for the Higgs boson self-coupling and...
The tracking performance of the ATLAS detector relies critically on its 4-layer Pixel
Detector, with a sensitive area of ~1.9 m2 and 92 million pixels. Its original part,
consisting in 3 layers of planar pixel sensor is continuously operating since the start
of LHC collisions in 2008, while Its innermost layer, the Insertable B Layer (IBL) at
about 3 cm from the beam line, was installed in...
The measurement of the production of Higgs boson pairs (HH) at the LHC allows the exploration of the Higgs boson interaction with itself and is thus a fundamental test of the Standard Model theory and has a key role in the determination of the Higgs boson nature. The most recent results from the CMS collaboration on measurements of non-resonant HH production using different final states and...
The Belle and Belle II experiments have collected a $1.6 ~\mathrm{ab}^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances. In particular, the Belle II experiment collected a 19.2 fb$^{-1}$ sample of data at centre-of-mass energies near the $\Upsilon(10753)$ resonance. We present several results related to the following processes: $e^+e-\to...
This talk presents the first CMS measurements of the production fractions of Bโบ, Bโฐ, and Bโฐโ mesons in proton-proton collisions at 13 TeV. The analysis is based on a dedicated 2018 data set collected with high-rate triggers, which enables the reconstruction of hadronic open-charm decays of B mesons (e.g., B โ ฯD), where the D mesons decay fully hadronically. These channels allow precise...
The ATLAS experiment is currently preparing for an upgrade of the Inner Tracking for High-Luminosity LHC operation, scheduled to start in 2030. The radiation damage at the maximum integrated luminosity of 4000/fb implies integrated hadron fluencies over 2x1016neq/cm2 and tracking in a very dense environment call for a replacement of the existing Inner Detector. An all-silicon Inner Tracker...
Since the classic searches for supersymmetry under R-parity conserving scenarios have not given any strong indication for new physics yet, more and more supersymmetry searches are carried out on a wider range of supersymmetric scenarios. This talk focuses on searches looking for signatures of stealth and R-parity-violating supersymmetry.
The Belle and Belle II experiments have collected a combined sample of 1.2 ab$^{-1}$ of $e^+ e^-\to B\bar{B}$ collisions at a centre-of-mass energy corresponding to the $\Upsilon(4S)$ resonance. These data, with low particle multiplicity and constrained initial state kinematics, are an ideal environment for studying semileptonic and leptonic decays of the $B$ meson. Combined with...
The event rates and kinematics of Higgs boson production and decay processes at the LHC are sensitive probes of possible new phenomena beyond the Standard Model (BSM). This talk presents the most recent results in the measurements of Higgs boson production and decay rates, obtained using the full Run 2 and partial Run 3 pp collision dataset collected by the ATLAS experiment at 13 TeV and 13.6...
Searches in CMS for long-lived particles and other non-conventional signatures
The Electron-Ion Collider (EIC), the future facility at Brookhaven National Laboratory (Upton, NY, USA), will enable precision studies of the partonic structure of nucleons and nuclei across a broad range of Bjorken-x and four-momentum transfer squared Q2, with center-of-mass energies from 20 to 140 GeV. Leveraging high luminosity (1034 cmโ2sโ1) and polarized beams (electrons, protons, and...
Physics results with the CMS Precision Proton Spectrometer and projections for the HL-LHC with PPS2
During the High Luminosity phase of LHC, up to 200 proton-proton collisions per bunch crossing will bring severe challenges for event reconstruction. To mitigate pileup effects, an extended upgrade program of the CMS experiment is expected. A new timing layer, the MIP Timing Detector (MTD), will be integrated between the tracker and the calorimeters. With a time resolution of 30-60 ps, the MTD...
Semileptonic b-hadron decays proceed via charged-current interactions and provide powerful probes for testing the Standard Model and searching for New Physics effects. The advantages of studying such decays include the large branching fractions and reliable calculations of the hadron matrix elements. Several SM features may be studied, such as the ratios of branching fractions, CKM parameters,...
An accurate description of the scalar potential at finite temperature is crucial for studying cosmological first-order phase transitions (FOPT) in the early Universe. At finite temperatures, a precise treatment of thermal resummations is essential, as bosonic fields encounter significant infrared issues that can compromise standard perturbative approaches. The Partial Dressing (or the tadpole...
In recent times, several anomalies have been observed in the semileptonic decays of $B$ meson mediated by FCNC transitions $b \to s \mu^+ \mu^-$. These tantalizing signals point towards the possible existence of New Physics beyond the Standard Model. We explore $U(1)_{L_e-L_\mu}$ gauge extension of the Standard Model with particle content enlarged by three neutral fermions, of which the...
Based on arXiv: 2409.13022 (published in ApJ Letters). We update constraints on cosmological parameters in a 12-parameter model, which extends the standard 6-parameter ฮCDM to include dynamical dark energy and massive neutrinos, along with other new parameters. We use the latest Planck PR4 (2020) likelihoods, DESI DR1 BAO, and the latest uncalibrated type Ia Supernovae (SNe) datasets. In this...
Recently it has been noticed that many familiar quantum field theories (QFTs) may minimize or maximize the amount of entanglement in a scattering process. Studying the quantum information (QI) properties of final states for on-shell scattering will help establish whether fundamental physics can be formulated in terms of QI principles. We first present a universal relation between final state...
In order to facilitate a connection between the Lagrangian
parameters of the Inverse Seesaw mechanism and low-energy data, we systematically develop new parametrisations of the Yukawa
couplings. Relying on these new parametrisations to explore the parameter space, we discuss the
complementary role of charged lepton flavour violation searches in dedicated facilities, as well as
in lepton...
The original top condensation theory of the 1990's deployed the renormalization group improved Nambu-Jona-Lasinio model, which lacked an internal wave-function. When close to critical coupling the NJL model breaks down. We then require a UV completion leading to an internal wave-function phi(r). phi(r), near criticality, expands and dilutes phi(0) which significantly modifies the predictions...
The Belle and Belle II experiments have collected a $1.6 ~\mathrm{ab}^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances. These samples contain a large number of $e^+e^-\to c\bar{c}$ events that produce charmed mesons. We present measurements of charm-mixing parameters from flavour-tagged $D^0\to K^0_{\rm S}\pi^+\pi^-$ decays. Direct $C\!P$...
The LHC and the HL-LHC demand detectors that can withstand the hostile radiation and high occupancy environment of hadron colliders. On the surface, Higgs factory detectors are without challenges, but they merely are without these specific challenges โ that does not make them easy to build. From the complex machine-detector interface to the varied role of muon systems, detectors at Higgs...
An important aspect of the Higgs boson physics programme at the LHC is to determine all the properties of this particle, including its mass, which is a free parameter in the SM, its width, CP properties and polarization states of the decay products. This presentation will discuss the latest developments in measurements of the Higgs boson properties, with the data collected by the CMS experiment.
Searches for Supersymmetry with compressed scenarios
The Radio Neutrino Observatory in Greenland (RNO-G) is currently under construction near Summit Station atop the Greenland ice sheet. Its goal is to detect ultra-high-energy neutrinos (E > 100 PeV) by capturing short radio pulsesโsignatures of neutrino interactions with the ice. Once complete, the array will consist of 35 independent stations spread across ~50 kmยฒ. Eight stations have already...
Supersymmetry (SUSY) provides elegant solutions to several problems in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. Naturalness arguments favour supersymmetric partners of the gluons and third-generation quarks with masses light enough to be produced at the LHC. With increasing mass bounds on more classical MSSM scenarios other...
This talk presents precise measurement of the CP properties of the Higgs boson using the full dataset collected in pp collisions at 13 TeV during Run 2 and at 13.6 TeV during Run 3 of the LHC. The measurements are performed in various Higgs boson production and decay modes, as well as their combinations. Observation of deviations between these measurements and Standard Model (SM) predictions...
The strong and electromagnetic interactions are the two main decay mechanisms in charmonium decays.
The relative phase between them is a basic parameter in understanding the decay dynamics, especially for precision measurements. In this talk, we present a direct measurement with resonance scan method. By introducing the EM amplitude from continuum decay, the interference between EM and strong...
The Pierre Auger Observatory plays a crucial role in detecting the most energetic particles in the Universe, including cosmic rays and neutrinos, to unravel their origins and contribute to multi-messenger astronomy. For the past two decades, during its Phase I, the Observatory has been actively searching for ultra-high-energy (UHE) neutrinos with energies above 0.1 EeV. These neutrinos can...
The ATLAS experiment at CERN is constructing upgraded system for the "High Luminosity LHC", with collisions due to start in 2030. In order to deliver an order of magnitude more data than previous LHC runs, 14 TeV protons will collide with an instantaneous luminosity of up to 7.5 x 10e34 cm^-2s^-1, resulting in much higher pileup and data rates than the current experiment was designed to...
Recent searches for SUSY particles with CMS with MET
Searches for processes in which baryon number is violated by 2, as would be observed in neutron-antineutron oscillation, have so far come up empty. Many of these searches involve first-generation quarks leaving open the possibility that these processes preferentially couple to initial or final states involving second- and third-generation quarks. We present the results of a search for $B^+\to...
Using 126 fb-1 of Run 2 data collected with the ATLAS detector, a measurement of the $b\bar b$ decay of the Standard Model Higgs boson produced through vector boson fusion yielded a signal strength corresponding to an observed (expected) significance of 2.6 (2.8) standard deviations from the background only hypothesis. This talk will focus on improving the previous measurement by utilizing new...
The CMS muon system is undergoing substantial upgrades to meet the challenges of the High-Luminosity LHC (HL-LHC), including the installation of the new Muon Endcap 0 (ME0) detector. Large-scale production started in 2024. ME0 is a six-layer station designed to extend pseudo-rapidity coverage to |\eta| = 2.8 from the previous maximum of |\eta| = 2.4, enhancing sensitivity to forward physics...
Neutrino self-interactions beyond the standard model have profound implications in astrophysics and cosmology. In this work, we study an uncharted scenario in which one of the three neutrino species has a mass much smaller than the temperature of the cosmic neutrino background. This results in a relativistic component that significantly broadens the absorption feature on the astrophysical...
The direct production of electroweak SUSY particles, including sleptons, charginos, and neutralinos, is a particularly interesting area with connections to dark matter and the naturalness of the Higgs mass. The small production cross-sections and challenging experimental signatures, often involving compressed spectra, lead to difficult searches. This talk will highlight the most recent results...
Constraints on Higgs light Yukawa couplings
We present a new precise measurement of the ratio of the $e^+e^- \to \pi^+\pi^-(\gamma)$ and $e^+e^- \to \mu^+\mu^-(\gamma)$ cross sections, using the initial-state radiation method. The analysis is basedย on the entire $BABAR$ data set, corresponding to 469 fb$^{-1}$, recorded at and near the $\Upsilon(4{\mathrm{S}})$ resonance.ย
The presented analysis does not rely on particle...
While IceCube's current dataset has established an astrophysical neutrino flux up to โผ10 PeV, many theoretical models predict continued emission into the ultra-high-energy (UHE) regimeโPeV to EeVโthat would directly trace the sources of the highest-energy cosmic rays. To extend sensitivity beyond 10 PeV and complement the recent UHE neutrino candidate reported by KM3NeT, we combine...
Weak scale supersymmetry (SUSY) is highly motivated in that it provides a natural solution to the gauge hierarchy problem. However, recent strong limits from superparticle searches at LHC Run 2 may exacerbate a so-called Little Hierarchy problem (LHP): why is m_{weak}<< m_{soft}?
We review recent LHC search bounds as well as their impact on a variety of proposed SUSY models. We address the...
The traditional quark model accounts for the existence of baryons, like protons and neutrons, which consist of three quarks, as well as mesons, composed of a quark and antiquark pair. Only recently has substantial evidence started to accumulate for exotic states composed of four or five quarks or antiquarks. In this study, the CMS Collaboration investigates the recently discovered family of...
The BESIII experiment has collected 2.6 billion $\psi(3686)$ events, 10 billion $J/\psi$ events, 20 $fb^{-1}$ of D meson pairs at 3.773 GeV, and 7.33 $fb^{-1}$ of $D_sD_s^*$ events from 4.128 to 4.226 GeV. These huge data samples allow us to search for rare processes in charm hadron decays.
In this talk, we report the search of the FCNC decays $J/\psi \to D^0 \mu^+ \mu^-$ and $D_s^+ \to...
While the excitation spectrum of light mesons, which are composed of up and down quarks, is already mapped out fairly well, the spectrum of strange mesons is still to be mapped out in detail, potentially holding many surprise.
At the COMPASS experiment at CERN, we study the strange-meson spectrum in the diffractive scattering of a high-energy kaon beam.
In this talk we will focus on the...
Thanks to the exellent detector performance and the unprecedented yield of all sorts of heavy flavour hadrons, LHCb have discovered a plethora of new hadronic states, many of which cannot fall into the conventional picture of quark model. This talk will report on the latest highlights of exotic states at LHCb, including pentaquark and tetraquark candidates.
The Askaryan Radio Array (ARA) is a neutrino experiment at the South Pole, designed to detect radio-frequency emissions produced by interactions of ultra-high energy (UHE) neutrinos with the Antarctic ice. The array consists of five autonomous stations, each equipped with deep in-ice antennas sensitive to both vertically and horizontally polarized radio signals. With nearly 30 station-years...
The exceptionally large dataset collected by the ATLAS detector at the highest proton-proton collision energies provided by the LHC enables precision testing of theoretical predictions using an extensive sample of top quark events. This wealth of data has opened the door to new measurements of top quark properties including those particularly sensitive to the ttbar threshold region, such as...
The Deep Underground Neutrino Experiment (DUNE) is a long-baseline neutrino experiment aimed at addressing fundamental questions such as the matter-antimatter asymmetry in the universe. Currently, DUNE relies on multiple platforms to store internal documentation, including DocDB, Indico (hosted by Fermilab), and EDMS (hosted by CERN). Retrieving relevant historical informationโespecially from...
The Standard Model of particle physics, while remarkably successful in describing most phenomena related to the fundamental interactions and particles, notably lacks a mechanism to account for dark matter, prompting a wealth of beyond the Standard Model (BSM) theories that propose various candidates and interactions. One such theory is the dark Higgs boson model. This model introduces three...
Signatures of new physics at the LHC are varied and by nature often very different from those of Standard Model processes. Novel experimental techniques, including dedicated datastreams are exploited to boost the sensitivity of the CMS Experiment to search for such signatures. In this talk we highlight the most recent CMS results, obtained using the data collected at the LHC Run-II through the...
Effective Field Theory (EFT) provides a universal framework for probing beyond the Standard Model physics at LHC scales. Recent advances in analysis techniques and increased dataset complexity have significantly enhanced the sensitivity of EFT studies, allowing for the exploration of previously untested couplings, including CP violation and the SM flavor structure. This talk will present the...
Particle flow reconstruction algorithms are fundamental for physics analysis at collider experiments. Improving these algorithms with deep learning presents a unique chance to enhance experimental sensitivity at the LHC and future facilities. This talk presents HGPflow, a deep learning method using hypergraphs that offers a physics-motivated framework for the energy assignment task in particle...
Over the past decade, neutrino astronomy has evolved into a precision tool for probing the high-energy universe. Here we present an updated characterization of the extragalactic diffuse neutrino flux measured by the IceCube Neutrino Observatory, spanning energies from a few TeV to beyond 10 PeV. Using ten years of full-sky data, we identify the first Glashow-resonance candidate โ an electron...
Many new physics models, such as the Sequential Standard Model, Grand Unified Theories, models of extra dimensions, or models with eg. leptoquarks or vector-like leptons, predict heavy mediators at the TeV energy scale. We present recent results of such searches in leptonic final states obtained using data recorded by the CMS experiment during Run-II of the LHC.
A search is presented for hadronic signatures of beyond the Standard Model (BSM) physics, with an emphasis on signatures of a strongly-coupled hidden dark sector accessed via resonant production of a Z' mediator using 140/fb of Run 2 pp collision data at 13 TeV. The Z' mediator is considered to decay to two dark quarks, which each hadronize and decay to showers containing both dark and...
Many-parameter fits to precise measurements in the framework of the Standard Model Effective Field Theory are becoming a standard interpretation of LHC and other collider data. In this contribution an overview is given of state-of-the-art EFT interpretations in ATLAS with particular emphasis on results in the top quark sector.
In 2021, LHAASO observed a large number of cosmic ray candidates in the Milky Way. We proposed to build a huge telescope with at least 30 times the sensitive volume of the IceCube detector, so as to observe the LHAAASO sources. In order to realize this project, we innovatively put forward a photosensitive detector unit based on a photomultiplier tube with a maximum photosensitive area of 20...
The Standard Model of Particle Physics explains many natural phenomena yet remains incomplete. Many new physics models (such as leptoquarks, W'/Z', or heavy neutral leptons) could manifest in final states involving multiple leptons. This talk will summarise the latest results from ATLAS in searches involving final states with leptons.
Reconstructing low-dimensional truth labels from high-dimensional detector data is a central challenge in any experiment that relies on robust mappings across this so-called domain gap, from multi-particle final states in high-energy physics to large-scale early-universe structure in cosmological surveys. We introduce a new method to bridge this domain gap with an intermediate, synthetic...
Determination of the nature of dark matter is one of the most fundamental problems of particle physics and cosmology. This talk presents recent searches for dark matter particles from the CMS experiment at the Large Hadron Collider in mono-X signatures. This talk will discuss the first search using the low-multiplicity jet signature at the LHC and supervised machine learning and data...
The study of rare top quark production modes opens the gate to a number of new physics models that introduce large contributions to them. As an example, the production of four top quarks could be affected by the direct or indirect production of top-philic heavy resonances or be modified by anomalous Yukawa interactions between the top quark and the Higgs boson. A set of measurements is...
This work presents advancements in model-agnostic searches for new physics at the Large Hadron Collider (LHC) through the application of event-based anomaly detection techniques utilizing unsupervised machine learning. We discuss the advantages of Anomaly detection approach, as demonstrated in a recent ATLAS analysis, and introduce ADFilter, a web-based tool designed to process collision...
Neutrinos provide unambiguous evidence of cosmic-ray (CR) acceleration in supernova remnants (SNRs), as they are produced exclusively in hadronic interactions. Detecting neutrinos from a SNR would offer direct confirmation of CR proton interactions and energy distributions. In this work, we conduct a comprehensive survey of Galactic SNRs to identify the most promising hadronic candidates. For...
Searches for particles that account for the Dark Matter in the Universe, which interact only through their couplings with the Higgs sector of the theory, the so-called Higgs-portal models, will be discussed. The analysis is performed using singly produced b-jet pairs, consistent with Higgs mass, recoiling from missing transverse momentum.
The emergence of fully electric vehicles and autonomous systems (e.g., cars, drones), combined with advancements in long-distance power transmission (e.g., satellites), has accelerated the development of wireless power transmission technologies. These technologies aim to address critical challenges such as reducing the reliance on extensive cabling and minimizing noise interference, especially...
