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
Tumasyan A
(2022)
Measurement of W ± ? differential cross sections in proton-proton collisions at s = 13 TeV and effective field theory constraints
in Physical Review D
Tumasyan A
(2022)
Measurement of the Inclusive and Differential Higgs Boson Production Cross Sections in the Decay Mode to a Pair of t Leptons in pp Collisions at sqrt[s]=13 TeV.
in Physical review letters
Aaij R
(2022)
Evidence for a New Structure in the J/?p and J/?p[over ¯] Systems in B_{s}^{0}?J/?pp[over ¯] Decays.
in Physical review letters
Abe K
(2022)
Scintillator ageing of the T2K near detectors from 2010 to 2021
in Journal of Instrumentation
LHCb Collaboration
(2022)
Measurement of the lifetimes of promptly produced Oc0 and ?c0 baryons.
in Science bulletin
Aaij R
(2022)
First Measurement of the Z?µ^{+}µ^{-} Angular Coefficients in the Forward Region of pp Collisions at sqrt[s]=13 TeV.
in Physical review letters
Matsumoto R
(2022)
Search for proton decay via p ? µ + K 0 in 0.37 megaton-years exposure of Super-Kamiokande
in Physical Review D
Chakraborty K
(2022)
Exploring Sterile Neutrino and Non-Unitary Neutrino Mixing at nuSTORM
Sirunyan AM
(2022)
Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Machado L
(2022)
Pre-supernova Alert System for Super-Kamiokande
in The Astrophysical Journal
Abe K
(2022)
Neutron tagging following atmospheric neutrino events in a water Cherenkov detector
in Journal of Instrumentation
Bogomilov M
(2022)
Multiple Coulomb scattering of muons in lithium hydride
in Physical Review D
Tumasyan A
(2022)
Fragmentation of jets containing a prompt J/? meson in PbPb and pp collisions at s NN = 5.02 TeV
in Physics Letters B
Zhang C
(2022)
Quantum Computation in a Hybrid Array of Molecules and Rydberg Atoms
in PRX Quantum
Egede U
(2022)
Electroweak Penguin Decays of b -Flavored Hadrons
in Annual Review of Nuclear and Particle Science
Aaij R
(2022)
Measurement of the B s 0 ? µ + µ - decay properties and search for the B 0 ? µ + µ - and B s 0 ? µ + µ - ? decays
in Physical Review D
Akerib D
(2022)
Fast and flexible analysis of direct dark matter search data with machine learning
in Physical Review D
Aaij R
(2022)
Observation of the B 0 ? D ¯ * 0 K + p - and B s 0 ? D ¯ * 0 K - p + decays
in Physical Review D
Aaij R
(2022)
Tests of Lepton Universality Using B^{0}?K_{S}^{0}l^{+}l^{-} and B^{+}?K^{*+}l^{+}l^{-} Decays.
in Physical review letters
Abe K
(2022)
First gadolinium loading to Super-Kamiokande
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2022)
Observation of Two New Excited ?_{b}^{0} States Decaying to ?_{b}^{0}K^{-}p^{+}.
in Physical review letters
Aaij R
(2022)
Search for massive long-lived particles decaying semileptonically at $${\sqrt{s}}=13\,\hbox {TeV}$$
in The European Physical Journal C
Ahdida C
(2022)
The SHiP experiment at the proposed CERN SPS Beam Dump Facility
in The European Physical Journal C
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
Aaij R
(2023)
Search for Rare Decays of D^{0} Mesons into Two Muons.
in Physical review letters
Aaij R
(2023)
Observation of New Baryons in the ? b - p + p - and ? b 0 p + p - Systems
in Physical Review Letters
Aaij R
(2023)
$${ {J}/\psi }$$ and $${ {D}} ^0$$ production in $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5\,\text {GeV} $$ PbNe collisions
in The European Physical Journal C
Aaij R
(2023)
Observation of a J/?? Resonance Consistent with a Strange Pentaquark Candidate in B^{-}?J/??p[over ¯] Decays.
in Physical review letters
Aaij R
(2023)
Measurement of lepton universality parameters in B + ? K + l + l - and B 0 ? K * 0 l + l - decays
in Physical Review D
Abud A
(2023)
Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora
in The European Physical Journal C
Harada M
(2023)
Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water
in The Astrophysical Journal Letters
Shinoki M
(2023)
Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water
in Physical Review D
Aalbers J
(2023)
First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
in Physical Review Letters
Aaij R
(2023)
Study of the B - ? ? c + ? ¯ c - K - decay
in Physical Review D
Aaij R
(2023)
Measurement of the Branching Fractions B ( B 0 ? p p ¯ p p ¯ ) and B ( B s 0 ? p p ¯ p p ¯ )
in Physical Review Letters
Aaij R
(2023)
Precision Measurement of C P Violation in the Penguin-Mediated Decay B s 0 ? ? ?
in Physical Review Letters
Hayrapetyan A
(2023)
Observation of four top quark production in proton-proton collisions at s = 13 TeV
in Physics Letters B
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
Abed Abud A
(2023)
Highly-parallelized simulation of a pixelated LArTPC on a GPU
in Journal of Instrumentation
Aaij R
(2023)
First observation of the B + ? D s + D s - K + decay
in Physical Review D
Aaij R
(2023)
Search for K S ( L ) 0 ? µ + µ - µ + µ - decays at LHCb
in Physical Review D
Abud A
(2023)
Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector
in Physical Review D
Aaij R
(2023)
Test of lepton flavor universality using B 0 ? D * - t + ? t decays with hadronic t channels
in Physical Review D
Aaij R
(2023)
Amplitude analysis of B 0 ? D ¯ 0 D s + p - and B + ? D - D s + p + decays
in Physical Review D
Wass P
(2023)
Simulating the charging of isolated free-falling masses from TeV to eV energies: Detailed comparison with LISA Pathfinder results
in Physical Review D
Bertone G
(2023)
Perspectives on fundamental cosmology from Low Earth Orbit and the Moon.
in NPJ microgravity