Particle Physics Consolidated Grant 2019
Lead Research Organisation:
University of Bristol
Department Name: Physics
Abstract
The Bristol particle physics group will search for evidence of physics beyond the Standard Model, and work to understand the properties of new phenomena. We will carry out this study using a range of approaches and experiments.
At the CERN CMS experiment at the LHC, we will search for signatures of the production of dark matter and supersymmetric particles, using events with 'missing energy'. In the absence of a discovery, we will combine statistical information from our observations with results from cosmology and direct dark matter searches, to rule out potential theories of new physics. We will also use the very large datasets produced at the LHC to study the production and properties of the top quark, a standard model particle with unique properties.
We will use a complementary approach to search for new physics at the CERN LHCb experiment, looking for subtle signatures of new physics that manifest themselves in the decays of mesons containing heavy quarks. We will use similar approaches to test current ideas about the nature of fundamental quantum symmetries.
We will continue to use the NA62 experiment at the CERN SPS to study the decays of kaons to look for signs of new physics, and the SOLID experiment at the BR2 reactor to study neutrino oscillations on an ultra-short baseline of 5-10m. We will also participate in the Mu3e experiment to search for lepton flavour violation.
The group will pursue R&D for future experiments, including upgrades for CMS and LHCb, and the SHiP experiment at the CERN SPS which will use a very high intensity beam to search for 'dark particles' that are signatures of physics beyond the Standard Model. We will continue to work on the detailed design and optimisation of detectors for a future linear collider (ILC or CLIC) and the proposed future circular collider.
We will also continue our programme on the development of new sensors and technologies, including collaboration with industry and other academic disciplines in order to generate impact from our work.
At the CERN CMS experiment at the LHC, we will search for signatures of the production of dark matter and supersymmetric particles, using events with 'missing energy'. In the absence of a discovery, we will combine statistical information from our observations with results from cosmology and direct dark matter searches, to rule out potential theories of new physics. We will also use the very large datasets produced at the LHC to study the production and properties of the top quark, a standard model particle with unique properties.
We will use a complementary approach to search for new physics at the CERN LHCb experiment, looking for subtle signatures of new physics that manifest themselves in the decays of mesons containing heavy quarks. We will use similar approaches to test current ideas about the nature of fundamental quantum symmetries.
We will continue to use the NA62 experiment at the CERN SPS to study the decays of kaons to look for signs of new physics, and the SOLID experiment at the BR2 reactor to study neutrino oscillations on an ultra-short baseline of 5-10m. We will also participate in the Mu3e experiment to search for lepton flavour violation.
The group will pursue R&D for future experiments, including upgrades for CMS and LHCb, and the SHiP experiment at the CERN SPS which will use a very high intensity beam to search for 'dark particles' that are signatures of physics beyond the Standard Model. We will continue to work on the detailed design and optimisation of detectors for a future linear collider (ILC or CLIC) and the proposed future circular collider.
We will also continue our programme on the development of new sensors and technologies, including collaboration with industry and other academic disciplines in order to generate impact from our work.
Planned Impact
Impact generation is an explicit goal of the group activity. Our target partnerships are:
- Outreach to the general public, which has societal impact and indirect economic benefit through engagement with STEM subjects. The public have a strong interest in particle physics, which we will sustain through proactive engagement with talks, lab visits, and other targeted activities.
- Outreach to school students and teachers, aiming to stimulate young people's interest in STEM subjects. The Bristol-led HISPARC-UK offers sustained two-way engagement with students and teachers, enabling them to participate in a genuine research with clusters of schools building and operating research-quality cosmic ray detectors. Our annual Masterclass offers the opportunity to engage with sixth-form students (around 200 per year) and teachers in an organised annual event. We also host a number of sixth-form work experience students each year.
- Collaboration with UK Industry, transferring our knowledge to address commercial, industrial, medical and security applications. We will engage UK industry as commercial partners in the development and construction of systems and detectors, including using the LHC upgrade and ILC projects as a means of achieving knowledge transfer to UK industry, and offering openings to further contracts at CERN and other labs.
- The provision of trained physicists to industry. Our highly collaborative and technology-focussed research environment, backed up with training in transferable skills, equips both graduates and staff with an strong set of relevant credentials.
- The transfer of technology and techniques into other areas of scientific, medical and social research, including medical instrumentation and therapies, nuclear monitoring and safeguarding, and environmental and geological sciences.
- Pursuing Global Challenges, applying STFC-funded research to solving problems and stimulating economic development in the developing world.
- Outreach to the general public, which has societal impact and indirect economic benefit through engagement with STEM subjects. The public have a strong interest in particle physics, which we will sustain through proactive engagement with talks, lab visits, and other targeted activities.
- Outreach to school students and teachers, aiming to stimulate young people's interest in STEM subjects. The Bristol-led HISPARC-UK offers sustained two-way engagement with students and teachers, enabling them to participate in a genuine research with clusters of schools building and operating research-quality cosmic ray detectors. Our annual Masterclass offers the opportunity to engage with sixth-form students (around 200 per year) and teachers in an organised annual event. We also host a number of sixth-form work experience students each year.
- Collaboration with UK Industry, transferring our knowledge to address commercial, industrial, medical and security applications. We will engage UK industry as commercial partners in the development and construction of systems and detectors, including using the LHC upgrade and ILC projects as a means of achieving knowledge transfer to UK industry, and offering openings to further contracts at CERN and other labs.
- The provision of trained physicists to industry. Our highly collaborative and technology-focussed research environment, backed up with training in transferable skills, equips both graduates and staff with an strong set of relevant credentials.
- The transfer of technology and techniques into other areas of scientific, medical and social research, including medical instrumentation and therapies, nuclear monitoring and safeguarding, and environmental and geological sciences.
- Pursuing Global Challenges, applying STFC-funded research to solving problems and stimulating economic development in the developing world.
Organisations
Publications
Acosta D.
(2002)
Limits on extra dimensions and new particle production in the exclusive photon and missing energy signature in pp¯ collisions at vs = 1.8 TeV
in Physical Review Letters
Acosta D.
(2002)
Branching ratio measurements of exclusive B+ decays to charmonium with the collider detector at fermilab
in Physical Review D - Particles, Fields, Gravitation and Cosmology
Acosta D.
(2003)
Search for long-lived charged massive particles in p p¯ collisions at vs = 1.8 TeV
in Physical Review Letters
Acosta D.
(2003)
Search for the supersymmetric partner of the top quark in dilepton events from pp¯ collisions at vs = 1.8 TeV
in Physical Review Letters
Acosta D.
(2003)
Search for associated production of Y and vector boson in pp¯ Collisions at vs = 1.8 TeV
in Physical Review Letters
Acosta D.
(2003)
Search for a W1 Boson decaying to a top and bottom quark pair in 1.8 TeV pp¯ collisions
in Physical Review Letters
Acosta D.
(2003)
Search for Lepton Flavor Violating Decays of a Heavy Neutral Particle in p p¯ Collisions at vs = 1.8 TeV
in Physical Review Letters
Acosta D.
(2003)
Measurement of prompt charm meson production cross sections in p p¯ collisions at vs = 1.96 TeV
in Physical Review Letters
Acosta D.
(2003)
Central pseudorapidity gaps in events with a leading antiproton at the Fermilab tevatron pp collider
in Physical Review Letters
Aaij R
(2019)
Measurements of CP asymmetries in charmless four-body $${\varLambda } ^0_{b} $$ and $${\varXi } ^0_{b} $$ decays
in The European Physical Journal C
Xu S
(2019)
Effect of Commercial Off-The-Shelf MAPS on ?-Ray Ionizing Radiation Response to Different Integration Times and Gains.
in Sensors (Basel, Switzerland)
Aaij R
(2019)
Search for C P Violation in D s + ? K S 0 p + , D + ? K S 0 K + , and D + ? ? p + Decays
in Physical Review Letters
Sirunyan A
(2019)
Measurement of prompt ?(2S) production cross sections in proton-lead and proton-proton collisions at s NN = 5.02 TeV
in Physics Letters B
Aaij R
(2019)
Model-Independent Observation of Exotic Contributions to B^{0}?J/?K^{+}p^{-} Decays.
in Physical review letters
Aaij R
(2019)
First Observation of the Radiative Decay ?_{b}^{0}???.
in Physical review letters
Aaij R
(2019)
Measurement of the CP-violating phase ? from B s 0 ? J / ? p + p - decays in 13 TeV pp collisions
in Physics Letters B
Aaij R
(2019)
Observation of B_{(s)}^{0}?J/?pp[over ¯] Decays and Precision Measurements of the B_{(s)}^{0} Masses.
in Physical review letters
Akiba K
(2019)
LHCb VELO Timepix3 telescope
in Journal of Instrumentation
Aaij R
(2019)
Amplitude Analysis of B^{±}?p^{±}K^{+}K^{-} Decays.
in Physical review letters
Aaij R
(2019)
Measurement of the Mass Difference Between Neutral Charm-Meson Eigenstates.
in Physical review letters
Aaij R
(2019)
Precision measurement of the ? c + , ? c + , and ? c 0 baryon lifetimes
in Physical Review D
Aaij R
(2019)
Measurement of the mass and production rate of ? b - baryons
in Physical Review D
Akiba K
(2019)
LHCb VELO Timepix3 telescope
in Journal of Instrumentation
Sirunyan A
(2019)
Measurement of nuclear modification factors of ?(1S), ?(2S), and ?(3S) mesons in PbPb collisions at s NN = 5.02 TeV
in Physics Letters B
Aaij R
(2019)
Observation of an Excited B_{c}^{+} State.
in Physical review letters
Aaij R
(2019)
Observation of a Narrow Pentaquark State, P_{c}(4312)^{+}, and of the Two-Peak Structure of the P_{c}(4450)^{+}.
in Physical review letters
Aaij R
(2019)
Search for the doubly charmed baryon $$\Xi_{cc}^+$$
in Science China Physics, Mechanics & Astronomy
Aaij R
(2019)
Search for Lepton-Flavor Violating Decays B^{+}?K^{+}µ^{±}e^{±}.
in Physical review letters
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
Aaij R
(2019)
Measurement of CP-Violating and Mixing-Induced Observables in B_{s}^{0}??? Decays.
in Physical review letters
Aaij R
(2019)
Measurement of B + , B 0 and ? b 0 production in p Pb collisions at s NN = 8.16 TeV
in Physical Review D
Aaij R
(2019)
Updated measurement of time-dependent $$CP$$-violating observables in $${ {B} ^0_{s}} \rightarrow J/\psi K^+ K^-$$ decays
in The European Physical Journal C
Aaij R
(2019)
Observation of New Resonances in the ?_{b}^{0}p^{+}p^{-} System.
in Physical review letters
Aaij R
(2019)
Observation of CP Violation in Charm Decays.
in Physical review letters
Aaij R
(2019)
Search for the Lepton-Flavor-Violating Decays B_{s}^{0}?t^{±}µ^{±} and B^{0}?t^{±}µ^{±}.
in Physical review letters
Frazão L
(2019)
High-resolution imaging of nuclear waste containers with Muon Scattering Tomography
in Journal of Instrumentation
Blake T
(2019)
The TORCH time-of-flight detector
Aaij R
(2019)
Measurement of Charged Hadron Production in Z-Tagged Jets in Proton-Proton Collisions at sqrt[s]=8 TeV.
in Physical review letters
Aaij R
(2019)
Measurement of b hadron fractions in 13 TeV p p collisions
in Physical Review D
Aaij R
(2019)
Search for Lepton-Universality Violation in B^{+}?K^{+}l^{+}l^{-} Decays.
in Physical review letters
Aaij R
(2020)
Isospin Amplitudes in ?_{b}^{0}?J/??(S^{0}) and ?_{b}^{0}?J/??^{0}(?) Decays.
in Physical review letters
Aaij R
(2020)
Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at sqrt[s_{NN}]=8.16 TeV.
in Physical review letters
Aaij R
(2020)
Measurement of $${\psi {(2S)}} $$ production cross-sections in proton-proton collisions at $$\sqrt{s} =7$$ and $$13\text { TeV} $$
in The European Physical Journal C
Abi B
(2020)
Volume I. Introduction to DUNE
in Journal of Instrumentation
Kopp A
(2020)
Non-destructive assay of nuclear waste containers using muon scattering tomography in the Horizon2020 CHANCE project
in EPJ Web of Conferences
Harnew N
(2020)
Status of the TORCH Project
in Journal of Instrumentation
Hancock T
(2020)
Beam tests of a large-scale TORCH time-of-flight demonstrator
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2020)
Search for the doubly heavy $$ {\Xi}_{bc}^0 $$ baryon via decays to D0pK-
in Journal of High Energy Physics
Aaij R
(2020)
Measurement of f_{s}/f_{u} Variation with Proton-Proton Collision Energy and B-Meson Kinematics.
in Physical review letters
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