The study of elementary particles and their interactions (Consolidated Grant 2019 - 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.
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 measure the Higgs particle, following its successful discovery in 2012. It will also be able to extend the parameter space in searches for SUSY and other new phenomena such as finding evidence of potential dark matter candidates. The LHCb experiment will offer complementary tests of the Standard Model and beyond with the ability to look for extremely rare decays in flavour physics and to measure CP asymmetries in the decays of B mesons, both of which are sensitive to contributions from new physics. The group will also be active in preparing the next generation of detectors for the high luminosity upgrade of the LHC.
The T2K long baseline neutrino experiment will allow us to expand our understanding of the masses and mixings in the neutrino sector, and should provide key indications of CP violation in the neutrino sector. The SoLid experiment will take data throughout the grant period and should settle the very short baseline neutrino anomoly. One of the other missing pieces of the neutrino puzzle is whether the neutrino is its own antiparticle. We are preparing the SuperNEMO experiment to attempt to determine if the neutrino is a Majorana particle and first data-taking will occur during the grant. Heavy neutrino-like particles are predicted in several new physics models and we are starting preparations for the SHiP experiment to search for these new particles.
The group will be active in several experiments specifically searching for new physics. Direct conversion of muons to electrons is heavily suppressed in the Standard Model so any observation of this process would be a major discovery. The COMET experiment is searching for this process and will take data during the grant. Similarly, a measurable electric dipole moment for the electron could only arise through new physics and the eEDM experiment will continue to push down the limits for such an effect. 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.
Accelerators to produce muon beams will be needed for future neutrino and muon collider experiments. The group is continuing its research in this area through the nuSTORM studies. Proton beams also have potential applications for other scientific fields and for healthcare, and the group is studying how to apply these techniques in these areas.
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 measure the Higgs particle, following its successful discovery in 2012. It will also be able to extend the parameter space in searches for SUSY and other new phenomena such as finding evidence of potential dark matter candidates. The LHCb experiment will offer complementary tests of the Standard Model and beyond with the ability to look for extremely rare decays in flavour physics and to measure CP asymmetries in the decays of B mesons, both of which are sensitive to contributions from new physics. The group will also be active in preparing the next generation of detectors for the high luminosity upgrade of the LHC.
The T2K long baseline neutrino experiment will allow us to expand our understanding of the masses and mixings in the neutrino sector, and should provide key indications of CP violation in the neutrino sector. The SoLid experiment will take data throughout the grant period and should settle the very short baseline neutrino anomoly. One of the other missing pieces of the neutrino puzzle is whether the neutrino is its own antiparticle. We are preparing the SuperNEMO experiment to attempt to determine if the neutrino is a Majorana particle and first data-taking will occur during the grant. Heavy neutrino-like particles are predicted in several new physics models and we are starting preparations for the SHiP experiment to search for these new particles.
The group will be active in several experiments specifically searching for new physics. Direct conversion of muons to electrons is heavily suppressed in the Standard Model so any observation of this process would be a major discovery. The COMET experiment is searching for this process and will take data during the grant. Similarly, a measurable electric dipole moment for the electron could only arise through new physics and the eEDM experiment will continue to push down the limits for such an effect. 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.
Accelerators to produce muon beams will be needed for future neutrino and muon collider experiments. The group is continuing its research in this area through the nuSTORM studies. Proton beams also have potential applications for other scientific fields and for healthcare, and the group is studying how to apply these techniques in these areas.
Planned Impact
While much of the research described in this grant is exploring fundamental questions where the immediate impact implications of discoveries can take decades to unfold, there are several examples of areas where technology developed in the pursuit of discoveries can have a more immediate impact. The group has potential impact in several key areas; training, outreach, transfer of HEP technology and ideas, and transfer and development of accelerator technology. These reach a diverse audience ranging from schoolchildren to cancer practitioners to neutron source users. See the submitted "Pathways to Impact" document for further details.
Organisations
Publications
Aaij R
(2021)
Observation of the suppressed ? b 0 ? D p K - decay with D ? K + p - and measurement of its C P asymmetry
in Physical Review D
Aaij R
(2022)
Observation of Two New Excited ?_{b}^{0} States Decaying to ?_{b}^{0}K^{-}p^{+}.
in Physical review letters
Aaij R
(2023)
Open charm production and asymmetry in pNe collisions at $$\sqrt{s_{\scriptscriptstyle {\textrm{NN}}}} = 68.5$$ $$\,\text {Ge\hspace{-1.00006pt}V}$$
in The European Physical Journal C
Agarwal G
(2020)
Optimisation of vortex tubes and the potential for use in atmospheric separation
in Journal of Physics D: Applied Physics
Sirunyan A
(2020)
Performance of the CMS Level-1 trigger in proton-proton collisions at v s = 13 TeV
in Journal of Instrumentation
Calabrese R
(2022)
Performance of the LHCb RICH detectors during LHC Run 2
in Journal of Instrumentation
Bertone G
(2023)
Perspectives on fundamental cosmology from Low Earth Orbit and the Moon.
in NPJ microgravity
Sirunyan A
(2020)
Pileup mitigation at CMS in 13 TeV data
in Journal of Instrumentation
Machado L
(2022)
Pre-supernova Alert System for Super-Kamiokande
in The Astrophysical Journal
Aaij R
(2021)
Precise measurement of the f s / f d ratio of fragmentation fractions and of B s 0 decay branching fractions
in Physical Review D
Sirunyan AM
(2021)
Precision luminosity measurement in proton-proton collisions at s = 13 TeV in 2015 and 2016 at CMS.
in The European physical journal. C, Particles and fields
Aaij R
(2023)
Precision Measurement of C P Violation in the Penguin-Mediated Decay B s 0 ? ? ?
in Physical Review Letters
Aaij R
(2020)
Precision measurement of the $$ {\varXi}_{cc}^{++} $$ mass
in Journal of High Energy Physics
Sirunyan A
(2019)
Probing the chiral magnetic wave in p Pb and PbPb collisions at s NN = 5.02 TeV using charge-dependent azimuthal anisotropies
in Physical Review C
Aaij R
(2024)
Production of ? and ? ' mesons in p p and p Pb collisions
in Physical Review C
The LZ Collaboration
(2021)
Projected sensitivities of the LUX-ZEPLIN (LZ) experiment to new physics via low-energy electron recoils
Akerib D
(2021)
Projected sensitivities of the LUX-ZEPLIN experiment to new physics via low-energy electron recoils
in Physical Review D
Akerib D
(2020)
Projected sensitivity of the LUX-ZEPLIN experiment to the 0 ? ß ß decay of Xe 136
in Physical Review C
Akerib D
(2021)
Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double ß decays of Xe 134
in Physical Review C
Badurina L
(2022)
Prospective sensitivities of atom interferometers to gravitational waves and ultralight dark matter.
in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Abi B
(2021)
Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment: DUNE Collaboration.
in The European physical journal. C, Particles and fields
Zhang C
(2022)
Quantum Computation in a Hybrid Array of Molecules and Rydberg Atoms
in PRX Quantum
Nakazawa Y
(2020)
Radiation hardness study for the COMET Phase-I electronics
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abud A
(2023)
Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora
in The European Physical Journal C
Sirunyan A
(2020)
Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
in Journal of Instrumentation
Uchida K
(2019)
Results from the CBC3 readout ASIC for CMS 2S-modules
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abud AA
(2022)
Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.
in The European physical journal. C, Particles and fields
Abe K
(2022)
Scintillator ageing of the T2K near detectors from 2010 to 2021
in Journal of Instrumentation
Aaij R
(2023)
Search for $$D^{*}(2007)^{0} \rightarrow \mu ^{+} \mu ^{-}$$ in $$B^{-}\rightarrow \pi ^{-} \mu ^{+} \mu ^{-}$$ decays
in The European Physical Journal C
Sirunyan AM
(2021)
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at s = 13 Te .
in The European physical journal. C, Particles and fields
Sirunyan A
(2020)
Search for a light charged Higgs boson in the H ± ? c s channel in proton-proton collisions at s = 13 TeV
in Physical Review D
Sirunyan AM
(2020)
Search for a Narrow Resonance Lighter than 200 GeV Decaying to a Pair of Muons in Proton-Proton Collisions at sqrt[s]=13 TeV.
in Physical review letters
Sirunyan A
(2019)
Search for a W' boson decaying to a t lepton and a neutrino in proton-proton collisions at s = 13 TeV
in Physics Letters B
Sirunyan A
(2020)
Search for an excited lepton that decays via a contact interaction to a lepton and two jets in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV
in Journal of High Energy Physics
Sirunyan A
(2019)
Search for an L - L gauge boson using Z ? 4µ events in proton-proton collisions at s = 13 TeV
in Physics Letters B
Hagiwara K
(2019)
Search for Astronomical Neutrinos from Blazar TXS 0506+056 in Super-Kamiokande
in The Astrophysical Journal Letters
Harada M
(2023)
Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water
in The Astrophysical Journal Letters
Sirunyan A
(2020)
Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s = 13 TeV
in Physical Review D
Aaij R
(2020)
Search for C P violation and observation of P violation in ? b 0 ? p p - p + p - decays
in Physical Review D
Aaij R
(2021)
Search for C P violation in ? b - ? p K - K - decays
in Physical Review D
Sirunyan AM
(2021)
Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton-proton collisions at s = 13 TeV.
in The European physical journal. C, Particles and fields
Abe K
(2023)
Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande.
in Physical review letters
Aaij R
(2020)
Search for CP violation in $${ {{\varXi }} ^+_{c}} \rightarrow {p} { {K} ^-} { {\pi } ^+} $$ decays using model-independent techniques
in The European Physical Journal C
Sirunyan AM
(2021)
Search for dark matter produced in association with a leptonically decaying Z boson in proton-proton collisions at s = 13 Te .
in The European physical journal. C, Particles and fields
Sirunyan A
(2021)
Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV
in Journal of High Energy Physics
Sirunyan A
(2020)
Search for decays of the 125 GeV Higgs boson into a Z boson and a ? or ? meson
in Journal of High Energy Physics
Sirunyan A
(2020)
Search for dijet resonances using events with three jets in proton-proton collisions at s = 13 TeV
in Physics Letters B