The study of elementary particles and their interactions (PPGPE Responsive PDRA Call 2022)
Lead Research Organisation:
Imperial College London
Department Name: Physics
Abstract
This grant is to continue the group's programme of investigation into the properties of elementary particles and the fundamental forces of nature. In particular the focus is on the operation of, and data analysis from, three particular experiments: CMS and LHCb at the LHC and the MIGDAL experiment at RAL.
One of the main objectives of this grant will be to support the exploitation of the LHC experiments which will be taking data during the period of this grant. The CMS experiment will continue to characterize the Higgs boson, which provides a unique window onto new physics (NP), and to use such measurements to search for this physics. The di-tau final state provides a unique probe of some of the properties of the Higgs boson and this Higgs decay will be exploited. Greatest sensitivity to new physics comes from the combination of all decay modes and 'combination and interpretation' activities will be another focus of this grant. It will also be possible to extend our searches for long-lived particles and other new phenomena. All CMS posts will support our mission critical M&O activities, in areas where we have the academic leadership.
The LHCb experiment will offer complementary tests of the Standard Model (SM) and beyond with the ability to look for extremely rare decays in flavour physics, which are sensitive to contributions from new physics. Measurements led by the group have revealed deviations from the SM, potentially indicating lepton non-universality and NP. Such NP models predict much larger effects in events involving tau leptons, motivating our proposal to make a world-leading measurement of the tau anomalous magnetic moment.
Around a quarter of the Universe is composed of dark matter and its nature is unknown. This has so far remained undetected in the laboratory and the group will continue its activity in searching for direct evidence of a dark matter candidate through the LUX-ZEPLIN experiment, along with preparations for the next generation detector. Particular focus in this grant will be given to the first observation of the 'Migdal effect' in nuclear scattering. This effect can be used to extend the sensitivity of these searches to lighter particles.
One of the main objectives of this grant will be to support the exploitation of the LHC experiments which will be taking data during the period of this grant. The CMS experiment will continue to characterize the Higgs boson, which provides a unique window onto new physics (NP), and to use such measurements to search for this physics. The di-tau final state provides a unique probe of some of the properties of the Higgs boson and this Higgs decay will be exploited. Greatest sensitivity to new physics comes from the combination of all decay modes and 'combination and interpretation' activities will be another focus of this grant. It will also be possible to extend our searches for long-lived particles and other new phenomena. All CMS posts will support our mission critical M&O activities, in areas where we have the academic leadership.
The LHCb experiment will offer complementary tests of the Standard Model (SM) and beyond with the ability to look for extremely rare decays in flavour physics, which are sensitive to contributions from new physics. Measurements led by the group have revealed deviations from the SM, potentially indicating lepton non-universality and NP. Such NP models predict much larger effects in events involving tau leptons, motivating our proposal to make a world-leading measurement of the tau anomalous magnetic moment.
Around a quarter of the Universe is composed of dark matter and its nature is unknown. This has so far remained undetected in the laboratory and the group will continue its activity in searching for direct evidence of a dark matter candidate through the LUX-ZEPLIN experiment, along with preparations for the next generation detector. Particular focus in this grant will be given to the first observation of the 'Migdal effect' in nuclear scattering. This effect can be used to extend the sensitivity of these searches to lighter particles.
Organisations
Publications
Aalbers J
(2024)
The design, implementation, and performance of the LZ calibration systems
in Journal of Instrumentation
Aalbers J
(2024)
Two-neutrino double electron capture of 124 Xe in the first LUX-ZEPLIN exposure
in Journal of Physics G: Nuclear and Particle Physics
Aalbers J
(2024)
Constraints on Covariant Dark-Matter-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment
in Physical Review Letters
Aamir M
(2024)
Using graph neural networks to reconstruct charged pion showers in the CMS High Granularity Calorimeter
in Journal of Instrumentation
Abbaneo D
(2024)
Results and Perspectives from the First Two Years of Neutrino Physics at the LHC by the SND@LHC Experiment
in Symmetry
Abe K
(2023)
Measurements of neutrino oscillation parameters from the T2K experiment using 3.6×1021 protons on target.
in The European physical journal. C, Particles and fields
Abe K
(2023)
Measurements of the ? µ and ? ¯ µ -induced coherent charged pion production cross sections on C 12 by the T2K experiment
in Physical Review D
Abe K
(2023)
Updated T2K measurements of muon neutrino and antineutrino disappearance using 3.6 × 10 21 protons on target
in Physical Review D
Abed Abud A
(2023)
Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment
in Physical Review D
Abed Abud A
(2023)
Highly-parallelized simulation of a pixelated LArTPC on a GPU
in Journal of Instrumentation
Abend S
(2024)
Terrestrial very-long-baseline atom interferometry: Workshop summary
in AVS Quantum Science
Abud A
(2023)
Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora
in The European Physical Journal C
Abud A
(2023)
Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector
in Physical Review D
Acar B
(2024)
Timing performance of the CMS High Granularity Calorimeter prototype
in Journal of Instrumentation
CMS Collaboration
(2024)
Search for Z Z and Z H production in the b b ¯ b b ¯ final state using proton-proton collisions at s = 13 Te V.
in The European physical journal. C, Particles and fields
CMS Collaboration
(2024)
Measurement of multijet azimuthal correlations and determination of the strong coupling in proton-proton collisions at s = 13 Te V.
in The European physical journal. C, Particles and fields
CMS Collaboration
(2024)
Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the µµbb and ttbb final states.
in The European physical journal. C, Particles and fields
CMS Collaboration
(2024)
Constraints on anomalous Higgs boson couplings from its production and decay using the WW channel in proton-proton collisions at s = 13 TeV.
in The European physical journal. C, Particles and fields
Cms Collaboration T
(2024)
Test of lepton flavor universality inB±?K±µ+µ-andB±?K±e+e-decays in proton-proton collisions ats=13TeV.
in Reports on progress in physics. Physical Society (Great Britain)
Cms Collaboration T
(2024)
Observation of???ttin proton-proton collisions and limits on the anomalous electromagnetic moments of the t lepton.
in Reports on progress in physics. Physical Society (Great Britain)
Cms Collaboration T
(2024)
Observation of quantum entanglement in top quark pair production in proton-proton collisions ats=13 TeV.
in Reports on progress in physics. Physical Society (Great Britain)
CMS Collaboration
(2024)
Search for CP violation in D 0 ? K S 0 K S 0 decays in proton-proton collisions at s = 13 Te V.
in The European physical journal. C, Particles and fields
CMS Collaboration
(2025)
Measurement of multidifferential cross sections for dijet production in proton-proton collisions at s = 13 Te V.
in The European physical journal. C, Particles and fields
Harada M
(2023)
Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water
in The Astrophysical Journal Letters
Hayrapetyan A
(2024)
Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2024)
Performance of the CMS electromagnetic calorimeter in pp collisions at v s = 13 TeV
in Journal of Instrumentation
Hayrapetyan A
(2024)
Measurement of the polarizations of prompt and non-prompt and ? ( 2S ) mesons produced in pp collisions at s = 13 TeV
in Physics Letters B
Hayrapetyan A
(2024)
Searches for violation of Lorentz invariance in top quark pair production using dilepton events in 13 TeV proton-proton collisions
in Physics Letters B
Hayrapetyan A
(2024)
Search for stealth supersymmetry in final states with two photons, jets, and low missing transverse momentum in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2023)
Observation of four top quark production in proton-proton collisions at s = 13 TeV
in Physics Letters B
Hayrapetyan A
(2024)
Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2025)
Pseudorapidity distributions of charged hadrons in lead-lead collisions at s NN = 5.36 TeV
in Physics Letters B
Hayrapetyan A
(2024)
Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2024)
Performance of CMS muon reconstruction from proton-proton to heavy ion collisions
in Journal of Instrumentation
Hayrapetyan A
(2024)
Search for Soft Unclustered Energy Patterns in Proton-Proton Collisions at 13 TeV.
in Physical review letters
Hayrapetyan A
(2024)
Nonresonant central exclusive production of charged-hadron pairs in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2024)
Search for production of a single vectorlike quark decaying to t H or t Z in the all-hadronic final state in p p collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2024)
Search for the Z Boson Decay to ttµµ in Proton-Proton Collisions at sqrt[s]=13 TeV.
in Physical review letters
Hayrapetyan A
(2024)
Observation of double J / ? meson production in p Pb collisions at s NN = 8.16 TeV
in Physical Review D
Hayrapetyan A
(2024)
Search for flavor changing neutral current interactions of the top quark in final states with a photon and additional jets in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2024)
Observation of W W ? Production and Search for H ? Production in Proton-Proton Collisions at s = 13 TeV
in Physical Review Letters
Hayrapetyan A
(2024)
Search for new Higgs bosons via same-sign top quark pair production in association with a jet in proton-proton collisions at s = 13 TeV
in Physics Letters B
Hayrapetyan A
(2024)
Muon identification using multivariate techniques in the CMS experiment in proton-proton collisions at sqrt(s) = 13 TeV
in Journal of Instrumentation
Hayrapetyan A
(2024)
Observation of Enhanced Long-Range Elliptic Anisotropies Inside High-Multiplicity Jets in p p Collisions at s = 13 TeV
in Physical Review Letters
Hayrapetyan A
(2024)
Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2025)
Search for charged-lepton flavor violation in the production and decay of top quarks using trilepton final states in proton-proton collisions at s = 13 TeV
in Physical Review D
Hayrapetyan A
(2025)
Constraints on the Higgs boson self-coupling from the combination of single and double Higgs boson production in proton-proton collisions at s = 13 TeV
in Physics Letters B