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
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
(2019)
Centrality and pseudorapidity dependence of the transverse energy density in p Pb collisions at s N N = 5.02 TeV
in Physical Review C
Sirunyan AM
(2019)
Combined measurements of Higgs boson couplings in proton-proton collisions at s = 13 Te .
in The European physical journal. C, Particles and fields
Aaij R
(2019)
Measurement of the B c - meson production fraction and asymmetry in 7 and 13 TeV p p collisions
in Physical Review D
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
Sirunyan A
(2019)
Erratum to: Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
in Journal of High Energy Physics
Sirunyan A
(2019)
Search for invisible decays of a Higgs boson produced through vector boson fusion in proton-proton collisions at s = 13 TeV
in Physics Letters B
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
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
Sirunyan AM
(2019)
Jet Shapes of Isolated Photon-Tagged Jets in Pb-Pb and pp Collisions at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Hagiwara K
(2019)
Search for Astronomical Neutrinos from Blazar TXS 0506+056 in Super-Kamiokande
in The Astrophysical Journal Letters
Sirunyan A
(2019)
Non-Gaussian elliptic-flow fluctuations in PbPb collisions at s NN = 5.02 TeV
in Physics Letters B
Sirunyan A
(2020)
Determination of the strong coupling constant aS(mZ) from measurements of inclusive W± and Z boson production cross sections in proton-proton collisions at $$ \sqrt{\mathrm{s}} $$ = 7 and 8 TeV
in Journal of High Energy Physics
Aaij R
(2020)
Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at sqrt[s_{NN}]=8.16 TeV.
in Physical review 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
Akerib D
(2020)
Improved modeling of ß electronic recoils in liquid xenon using LUX calibration data
in Journal of Instrumentation
Sirunyan AM
(2020)
Study of central exclusive production in proton-proton collisions at s = 5.02 and 13TeV.
in The European physical journal. C, Particles and fields
Badurina L
(2020)
AION: an atom interferometer observatory and network
in Journal of Cosmology and Astroparticle Physics
Abe K
(2020)
Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K
in Physical Review D
Abe K
(2020)
Search for Electron Antineutrino Appearance in a Long-Baseline Muon Antineutrino Beam.
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
Aaij R
(2020)
Measurement of the $${\eta _{c}} (1S)$$ production cross-section in $$p $$ $$p $$ collisions at $$\sqrt{s} = 13$$ $$\, \text {TeV}$$
in The European Physical Journal C
Aaij R
(2020)
Isospin Amplitudes in ?_{b}^{0}?J/??(S^{0}) and ?_{b}^{0}?J/??^{0}(?) Decays.
in Physical review letters
Sirunyan A
(2020)
Measurements with silicon photomultipliers of dose-rate effects in the radiation damage of plastic scintillator tiles in the CMS hadron endcap calorimeter
in Journal of Instrumentation
Sirunyan A
(2020)
Search for resonant pair production of Higgs bosons in the b b Z Z channel in proton-proton collisions at s = 13 TeV
in Physical Review D
Sirunyan A
(2020)
Search for high mass dijet resonances with a new background prediction method in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV
in Journal of High Energy Physics
Aaij R
(2020)
First Observation of Excited O_{b}^{-} States.
in Physical review letters
Aaij R
(2020)
First observation of the decay B 0 ? D 0 D ¯ K + 0 p -
in Physical Review D
Sirunyan AM
(2020)
Search for physics beyond the standard model in events with jets and two same-sign or at least three charged leptons in proton-proton collisions at s = 13 TeV.
in The European physical journal. C, Particles and fields
Aaij R
(2020)
Amplitude analysis of the B + ? D + D - K + decay
in Physical Review D
Sirunyan AM
(2020)
Measurement of the Jet Mass Distribution and Top Quark Mass in Hadronic Decays of Boosted Top Quarks in pp Collisions at sqrt[s]=13 TeV.
in Physical review letters
Sirunyan AM
(2020)
Observation of the B_{s}^{0}?X(3872)? Decay.
in Physical review letters
Aaij R
(2020)
Measurement of the relative branching fractions of B + ? h + h ' + h ' - decays
in Physical Review D
Akerib D
(2020)
Search for two neutrino double electron capture of 124 Xe and 126 Xe in the full exposure of the LUX detector
in Journal of Physics G: Nuclear and Particle Physics
Sirunyan AM
(2020)
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at s NN = 2.76 and 5.02 TeV.
in The European physical journal. C, Particles and fields
Sirunyan A
(2020)
W + W - boson pair production in proton-proton collisions at s = 13 TeV
in Physical Review D
Aaij R
(2020)
Study of the lineshape of the ? c 1 ( 3872 ) state
in Physical Review D
Sirunyan AM
(2020)
Measurements of tt[over ¯]H Production and the CP Structure of the Yukawa Interaction between the Higgs Boson and Top Quark in the Diphoton Decay Channel.
in Physical review letters
Sirunyan A
(2020)
Observation of electroweak production of W? with two jets in proton-proton collisions at s = 13 TeV
in Physics Letters B
Aaij R
(2020)
Search for the Rare Decays B_{s}^{0}?e^{+}e^{-} and B^{0}?e^{+}e^{-}.
in Physical review letters
Sirunyan A
(2020)
Study of excited ? b 0 states decaying to ? b 0 p + p - in proton-proton collisions at s = 13 TeV
in Physics Letters B
Aaij R
(2020)
Updated measurement of decay-time-dependent C P asymmetries in D 0 ? K + K - and D 0 ? p + p - decays
in Physical Review D
Sirunyan AM
(2020)
Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton-proton collisions at s = 13 Te .
in The European physical journal. C, Particles and fields
Sirunyan A
(2020)
Performance of the CMS Level-1 trigger in proton-proton collisions at v s = 13 TeV
in Journal of Instrumentation
Aymar G
(2020)
LhARA: The Laser-hybrid Accelerator for Radiobiological Applications
in Frontiers in Physics
Sirunyan A
(2020)
A Deep Neural Network for Simultaneous Estimation of b Jet Energy and Resolution
in Computing and Software for Big Science
Sirunyan A
(2020)
Measurement of the top quark Yukawa coupling from t t ¯ kinematic distributions in the dilepton final state in proton-proton collisions at s = 13 TeV
in Physical Review D
Aaij R
(2020)
Measurement of the shape of the $$ {B}_s^0\to {D}_s^{\ast -}{\mu}^{+}{\nu}_{\mu } $$ differential decay rate
in Journal of High Energy Physics