The study of elementary particles and their interactions
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 cover completely new areas of 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. These experiments will make extensive use of Grid computing which the group will continue to develop and exploit, both for the LHC and for other experiments. The group will also be active in preparing the next generation of detectors for the high luminosity upgrade of the LHC.
The T2K experiment will allow us to expand our understanding of the masses and mixings in the neutrino sector, and should provide key measurements which will guide us as to whether we ultimately could see evidence of CP violation in the neutrino sector. 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 and later LUX-ZEPLIN experiments.
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 MICE experiment and 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. Understanding the LHC in terms of phenomenology is critical to comparing data to theory and the group is very active in this area.
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 cover completely new areas of 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. These experiments will make extensive use of Grid computing which the group will continue to develop and exploit, both for the LHC and for other experiments. The group will also be active in preparing the next generation of detectors for the high luminosity upgrade of the LHC.
The T2K experiment will allow us to expand our understanding of the masses and mixings in the neutrino sector, and should provide key measurements which will guide us as to whether we ultimately could see evidence of CP violation in the neutrino sector. 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 and later LUX-ZEPLIN experiments.
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 MICE experiment and 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. Understanding the LHC in terms of phenomenology is critical to comparing data to theory and the group is very active in this area.
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 many 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
Khachatryan V
(2016)
Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into t leptons in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at [Formula: see text].
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Study of B Meson Production in p+Pb Collisions at v[S(NN)]=5.02 TeV Using Exclusive Hadronic Decays.
in Physical review letters
Khachatryan V
(2016)
Search for neutral MSSM Higgs bosons decaying to µ+µ- in pp collisions at s = 7 and 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for the associated production of a Higgs boson with a single top quark in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of the charge asymmetry in top quark pair production in p p collisions at s = 8 TeV using a template method
in Physical Review D
Khachatryan V
(2016)
Search for new phenomena in monophoton final states in proton-proton collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Measurement of the ratio B ( B s 0 ? J / ? f 0 ( 980 ) ) / B ( B s 0 ? J / ? ? ( 1020 ) ) in pp collisions at s = 7 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for the production of an excited bottom quark decaying to tW in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of the integrated and differential t t ¯ production cross sections for high- p T top quarks in p p collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Search for neutral resonances decaying into a Z boson and a pair of b jets or t leptons
in Physics Letters B
Khachatryan V
(2016)
Search for dark matter particles in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV using the razor variables
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at [Formula: see text].
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Inclusive and differential measurements of the t t ¯ charge asymmetry in pp collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for anomalous single top quark production in association with a photon in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks.
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Measurement of the top quark mass using proton-proton data at ( s ) = 7 and 8 TeV
in Physical Review D
Khachatryan V
(2016)
Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Correlations between jets and charged particles in PbPb and pp collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Studies of inclusive four-jet production with two b -tagged jets in proton-proton collisions at 7 TeV
in Physical Review D
Khachatryan V
(2016)
Measurements of t t ? charge asymmetry using dilepton final states in pp collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for R-parity violating decays of a top squark in proton-proton collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{N}\;\mathrm{N}}}=2.76 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Search for resonant t t ¯ production in proton-proton collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of spin correlations in t t ? production using the matrix element method in the muon+jets final state in pp collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Measurement of the differential cross section and charge asymmetry for inclusive [Formula: see text] production at [Formula: see text] TeV.
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Search for new physics in same-sign dilepton events in proton-proton collisions at [Formula: see text].
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Search for new physics in final states with two opposite-sign, same-flavor leptons, jets, and missing transverse momentum in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of [Formula: see text] production with additional jet activity, including [Formula: see text] quark jets, in the dilepton decay channel using pp collisions at [Formula: see text].
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
?(nS) polarizations versus particle multiplicity in pp collisions at s = 7 TeV
in Physics Letters B
Khachatryan V
(2016)
Measurement of the [Formula: see text] production cross section in the all-jets final state in pp collisions at [Formula: see text][Formula: see text].
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Evidence for exclusive ?? ? W + W - production and constraints on anomalous quartic gauge couplings in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Study of Z boson production in pPb collisions at s N N = 5.02 TeV
in Physics Letters B
Khachatryan V
(2016)
Observation of top quark pairs produced in association with a vector boson in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Search for new physics with the M T2 variable in all-jets final states produced in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of Long-Range Near-Side Two-Particle Angular Correlations in p p Collisions at s = 13 TeV
in Physical Review Letters
Khachatryan V
(2016)
Search for a Higgs boson decaying into ????ll? with low dilepton mass in pp collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for pair-produced vectorlike B quarks in proton-proton collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Measurement of transverse momentum relative to dijet systems in PbPb and pp collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Angular analysis of the decay B0? K?0µ+µ- from pp collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Erratum to: Search for third-generation scalar leptoquarks in the tt channel in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Search for pair production of first and second generation leptoquarks in proton-proton collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Measurement of the [Formula: see text] cross section in pp collisions at [Formula: see text] TeVand limits on anomalous gauge couplings.
in The European physical journal. C, Particles and fields
Khachatryan V
(2016)
Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of differential and integrated fiducial cross sections for Higgs boson production in the four-lepton decay channel in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
in Journal of High Energy Physics
Khachatryan V
(2016)
Searches for R -parity-violating supersymmetry in p p collisions at s = 8 TeV in final states with 0-4 leptons
in Physical Review D
Khachatryan V
(2016)
Search for dark matter and unparticles produced in association with a Z boson in proton-proton collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Search for supersymmetry in events with soft leptons, low jet multiplicity, and missing transverse energy in proton-proton collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
Search for W' ? tb in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Description | One of the main objectives of this grant was to support the exploitation of the LHC experiments which were taking data during the period of this grant. The CMS experiment continued to measure the Higgs particle, following its successful discovery in 2012. It was also able to cover completely new areas of parameter space in searches for SUSY and other new phenomena such as finding evidence of potential dark matter candidates. The LHCb experiment offered 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. These experiments made extensive use of Grid computing which we continued to develop and exploit, both for the LHC and for other experiments. We were also active in preparing the next generation of detectors for the high luminosity upgrade of the LHC. The T2K experiment allowed us to expand our understanding of the masses and mixings in the neutrino sector, and provided key measurements towards obtaining evidence of CP violation in the neutrino sector. One of the other missing pieces of the neutrino puzzle is whether the neutrino is its own antiparticle. We prepared the SuperNEMO experiment to attempt to determine if the neutrino is a Majorana particle and first data-taking occurred during the grant. Heavy neutrino-like particles are predicted in several new physics models and we started preparations for the SHiP experiment to search for these new particles. The group was 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 was prepared to search for this process. Similarly, a measurable electric dipole moment for the electron could only arise through new physics and the eEDM experiment continued 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 we continued to search for direct evidence of a dark matter candidate through the LUX and later LUX-ZEPLIN experiments. Accelerators to produce muon beams will be needed for future neutrino and muon collider experiments. The group continued its research in this area through the MICE experiment and nuSTORM studies. Proton beams also have potential applications for other scientific fields and for healthcare, and we studied how to apply these techniques in these areas. Understanding the LHC in terms of phenomenology is critical to comparing data to theory and we were very active in this area. |
Exploitation Route | The knowledge gained will directly benefit future researchers in particle physics, astronomy and cosmology. |
Sectors | Digital/Communication/Information Technologies (including Software),Education,Healthcare |
Description | ZEPLIN-III detector exhibit & Public Lecture at "Whitby & the Cosmos" exhibition, Whitby, UK |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | The ZEPLIN-III dark matter detector, which operated at the Boulby Underground Laboratory between 2007 and 2011, was adapted for public display at Imperial College London and donated to the Whitby Museum in late 2018 -- where it became the centrepiece of the topical exhibition "Whitby & the Cosmos". I gave a public lecture entitled "Searching for WIMPs under the Moors" on 15 Feb 2019 to open the event. The ZEPLIN-III instrument will be moved to the permanent collection of the Museum once the exhibition comes to an end in July 2019. Both the exhibition and the public lecture were widely publicised in the local media. The Museum received further support from the Royal Society for this event. The exhibition will receive many thousand of visitors over the coming months. We had the opportunity to donate the instrument to the Science Museum in London, but we chose the Whitby Museum instead to honour a town which hosted the ZEPLIN collaboration for two decades. |
Year(s) Of Engagement Activity | 2019 |
URL | https://whitbymuseum.org.uk/2019/01/09/whitby-and-the-cosmos/ |