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
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
Cai T
(2023)
Measurement of the axial vector form factor from antineutrino-proton scattering.
in Nature
Ho C
(2023)
Systematic errors arising from polarization imperfections in measurements of the electron's electric dipole moment
in Physical Review Research
Taylor R
(2023)
Slow extraction modelling for NIMMS hadron therapy synchrotrons
in Journal of Physics: Conference Series
Aaij R
(2023)
Evidence of a J / ? K S 0 Structure in B 0 ? J / ? ? K S 0 Decays
in Physical Review Letters
Aaij R
(2023)
Search for $$D^{*}(2007)^{0} \rightarrow \mu ^{+} \mu ^{-}$$ in $$B^{-}\rightarrow \pi ^{-} \mu ^{+} \mu ^{-}$$ decays
in The European Physical Journal C
Aaij R
(2023)
Measurement of the ?_{b}^{0}??(1520)µ^{+}µ^{-} Differential Branching Fraction.
in Physical review letters
Aaij R
(2023)
First Observation of a Doubly Charged Tetraquark and Its Neutral Partner
in Physical Review Letters
Ritchie-Yates A
(2023)
First operation of an ALICE OROC operated in high pressure $${\text {Ar-CO}}_2$$ and $$\text {Ar-CH}_4$$
in The European Physical Journal C
Abe K
(2023)
Updated T2K measurements of muon neutrino and antineutrino disappearance using 3.6 × 10 21 protons on target
in Physical Review D
Aaij R
(2023)
Test of Lepton Universality in b?sl^{+}l^{-} Decays.
in Physical review letters
Aaij R
(2023)
Observation of New O_{c}^{0} States Decaying to the ?_{c}^{+}K^{-} Final State.
in Physical review letters
Aaij R
(2023)
Observation of a Resonant Structure near the D s + D s - Threshold in the B + ? D s + D s - K + Decay
in Physical Review Letters
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
LHCb Collaboration
(2023)
Search for the rare decays and at LHCb
in Chinese Physics C
Aaij R
(2023)
Measurement of the mass difference and relative production rate of the O b - and ? b - baryons
in Physical Review D
Araújo H
(2023)
The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter
in Astroparticle Physics
Buchmueller O
(2023)
Large-scale atom interferometry for fundamental physics
in Contemporary Physics
Aaij R
(2023)
Charmonium production in pNe collisions at $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5$$ GeV
in The European Physical Journal C
Aaij R
(2023)
Study of charmonium decays to K S 0 K p in the B ? ( K S 0 K p ) K channels
in Physical Review D
Abe K
(2023)
Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande.
in Physical review letters
Aaij R
(2023)
Search for the baryon- and lepton-number violating decays B 0 ? p µ - and B s 0 ? p µ -
in Physical Review D
Aaij R
(2023)
A study of $$C\!P$$ violation in the decays $${ {B} ^\pm } \rightarrow [{ {K} ^+} { {K} ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$ ($$h = K, \pi $$) and $${ {B} ^\pm } \rightarrow [{ {\uppi } ^+} { {\uppi } ^-} { {\uppi } ^+} { {\uppi } ^-} ]_{D} h^{\pm }$$
in The European Physical Journal C
Aaij R
(2024)
Fraction of ? c Decays in Prompt J / ? Production Measured in p Pb Collisions at s NN = 8.16 TeV
in Physical Review Letters
Sakai S
(2024)
Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos in the SK-Gd experiment
in Physical Review D
Hayrapetyan A
(2024)
Search for Scalar Leptoquarks Produced via t -Lepton-Quark Scattering in p p Collisions at s = 13 TeV
in Physical Review Letters
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
Aaij R
(2024)
Enhanced Production of ?_{b}^{0} Baryons in High-Multiplicity pp Collisions at sqrt[s]=13 TeV.
in Physical review letters
Tumasyan A
(2024)
Two-particle Bose-Einstein correlations and their Lévy parameters in PbPb collisions at s N N = 5.02 TeV
in Physical Review C
Aaij R
(2024)
Helium identification with LHCb
in Journal of Instrumentation
Tumasyan A
(2024)
Study of azimuthal anisotropy of ?(1S) mesons in pPb collisions at s NN = 8.16 TeV
in Physics Letters B
Aaij R
(2024)
Measurement of C P Violation in B 0 ? ? ( ? l + l - ) K S 0 ( ? p + p - ) Decays
in Physical Review Letters
Taylor R
(2024)
Slow Extraction Techniques from Fixed Field Accelerators
in Journal of Physics: Conference Series
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
Aaij R
(2024)
Momentum scale calibration of the LHCb spectrometer
in Journal of Instrumentation
Tumasyan A
(2024)
Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at s NN = 5.02 TeV
in Physics Letters B
Aaij R
(2024)
Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the O_{c}^{0} Baryon.
in Physical review letters
Aaij R
(2024)
Production of ? and ? ' mesons in p p and p Pb collisions
in Physical Review C