Bristol Particle Physics Consolidated Grant 2015-19
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.
A number of new experiments are being prepared, and will be ready for use within or shortly after the grant period. The NA62 experiment at the CERN SPS will study the decays of kaons to look for signs of new physics. The SOLID experiment at the BR2 reactor will study neutrino oscillations on an ultra-short baseline of 5-10m. The SHiP experiment at the CERN SPS will use a very high intensity beam to search for 'dark particles' that are signatures of physics beyond the Standard Model. Finally, we have begun to make preparations for the detailed design and optimisation of detectors for a future linear collider.
We will continue our programme of particle detector R&D, contributing to the upgrade of CMS and LHCb, to the design and construction of new experiments, and to the development of new sensors and technologies. An important part of this programme will be 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.
A number of new experiments are being prepared, and will be ready for use within or shortly after the grant period. The NA62 experiment at the CERN SPS will study the decays of kaons to look for signs of new physics. The SOLID experiment at the BR2 reactor will study neutrino oscillations on an ultra-short baseline of 5-10m. The SHiP experiment at the CERN SPS will use a very high intensity beam to search for 'dark particles' that are signatures of physics beyond the Standard Model. Finally, we have begun to make preparations for the detailed design and optimisation of detectors for a future linear collider.
We will continue our programme of particle detector R&D, contributing to the upgrade of CMS and LHCb, to the design and construction of new experiments, and to the development of new sensors and technologies. An important part of this programme will be collaboration with industry and other academic disciplines, in order to generate impact from our work.
Planned Impact
- There will be a societal impact amongst the general public as we publicise the results of our research through outreach.
- We will engage with school age students and teachers to convey the excitement of fundamental research, motivating more students to study STEM subjects at post-16 and HE levels.
- Engagement with UK industry through contracts and joint projects, and through the provision of well-trained physicists as employees, will result in economic impact
- Other academic disciplines will benefit from our skills, knowledge and capabilities, addressing a number of important problems across a range of fields
Full details are given in our Case for Support and Pathways to Impact document
- We will engage with school age students and teachers to convey the excitement of fundamental research, motivating more students to study STEM subjects at post-16 and HE levels.
- Engagement with UK industry through contracts and joint projects, and through the provision of well-trained physicists as employees, will result in economic impact
- Other academic disciplines will benefit from our skills, knowledge and capabilities, addressing a number of important problems across a range of fields
Full details are given in our Case for Support and Pathways to Impact document
Publications
Aaij R
(2016)
Measurement of forward W and Z boson production in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Aaij R
(2016)
Search for Violations of Lorentz Invariance and CPT Symmetry in B_{(s)}^{0} Mixing.
in Physical review letters
Malhotra S
(2016)
Measuring the Properties of the Higgs Boson at CMS
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Measurement of the top quark mass using charged particles in p p collisions at s = 8 TeV
in Physical Review D
Khachatryan V
(2016)
Search for supersymmetry in events with a photon, a lepton, and missing transverse momentum in pp collisions at s = 8 TeV
in Physics Letters B
Quertenmont L
(2016)
CMS constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
in Nuclear and Particle Physics Proceedings
Vernieri C
(2016)
Search for the Higgs boson in the b b ? decay channel using the CMS detector
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Measurement of the ZZ production cross section and Z ?l+l-l'+l'- branching fraction in pp collisions at s = 13 TeV
in Physics Letters B
Cossutti F
(2016)
Production of vector bosons and jets at CMS
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Search for massive WH resonances decaying into the [Formula: see text] final state at [Formula: see text][Formula: see text].
in The European physical journal. C, Particles and fields
Bortignon P
(2016)
Design and performance of the upgrade of the CMS L1 muon trigger
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
McColl N
(2016)
3rd generation squark searches at CMS
in Nuclear and Particle Physics Proceedings
Burgo R
(2016)
Readout electronics and test bench for the CMS Phase I pixel detector
in Journal of Instrumentation
Krätschmer I
(2016)
Muon reconstruction and identification in CMS Run I and towards Run II
in Nuclear and Particle Physics Proceedings
Aaij R
(2016)
Studies of the resonance structure in D 0 ? K S 0 K ± p ± decays
in Physical Review D
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)
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
Vai I
(2016)
Test beam and irradiation test results of Triple-GEM detector prototypes for the upgrade of the muon system of the CMS experiment
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2016)
Differential branching fraction and angular moments analysis of the decay B 0 ? K +p- µ + µ - in the K 0,2 * (1430)0 region
in Journal of High Energy Physics
Tonjes M
(2016)
Nuclear modification of jet and hadron spectra with CMS
in Nuclear and Particle Physics Proceedings
Ferraioli C
(2016)
Quarkonium cross sections and polarizations in pp collisions with CMS
in Nuclear and Particle Physics Proceedings
Reis T
(2016)
Search for new Resonances in Dielectron and Dimuon Mass Spectra at s = 8 TeV with CMS
in Nuclear and Particle Physics Proceedings
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
Ramírez J
(2016)
Exploiting multicore compute resources in the CMS experiment
in Journal of Physics: Conference Series
Lagarde F
(2016)
High rate, fast timing Glass RPC for the high ? CMS muon detectors
in Journal of Instrumentation
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)
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
Wang T
(2016)
Open Heavy Flavor Measurement in heavy ion collisions with CMS
in Nuclear and Particle Physics Proceedings
Hamer P
(2016)
Search for B 0 ? p - t + ? t with hadronic tagging at Belle
in Physical Review D
Sun J
(2016)
Open Heavy Flavor Measurements in Heavy Ion Collisions with CMS
in Nuclear Physics A
Holzner A
(2016)
Higgs physics at CMS
in Hyperfine Interactions
Khachatryan V
(2016)
Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
in Journal of High Energy Physics
Boimska B
(2016)
Heavy-ion Results of the CMS Experiment
in Acta Physica Polonica B
Dorigo T
(2016)
Recent Results of the CMS Experiment
in EPJ Web of Conferences
Cieri D
(2016)
Hardware Demonstrator of a Level-1 Track Finding Algorithm with FPGAs for the Phase II CMS Experiment
in Journal of Physics: Conference Series
Hasegawa S
(2016)
Prototypes and system test stands for the Phase 1 upgrade of the CMS pixel detector
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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)
Measurement of the t t ¯ $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section in the eµ channel in proton-proton collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
in Journal of High Energy Physics
Schulte J
(2016)
Search for Beyond the Standard Model Physics in final states with multiple leptons
in Nuclear and Particle Physics Proceedings
Dutta D
(2016)
Minimum Bias, MPI and DPS, Diffractive and Exclusive measurements at CMS
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Measurement of Long-Range Near-Side Two-Particle Angular Correlations in pp Collisions at sqrt[s]=13 TeV.
in Physical review letters
Harnew N
(2016)
The TORCH time-of-flight detector
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2016)
Measurement of the forward Z boson production cross-section in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
in Journal of High Energy Physics
Anagnostou G
(2016)
Beyond two generations
in EPJ Web of Conferences
Guiducci L
(2016)
CMS muon system towards LHC Run 2 and beyond
in Nuclear and Particle Physics Proceedings
Aaij R
(2016)
Measurement of the CKM angle ? using B 0 ? DK *0 with D ? K S 0 p + p - decays
in Journal of High Energy Physics
De Guio F
(2016)
Performance of the CMS Detector During the LHC Run 2
in Acta Physica Polonica B
Pozzobon N
(2016)
A proposed Drift Tubes-seeded muon track trigger for the CMS experiment at the High Luminosity-LHC
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2016)
Erratum: First observation of the rare B + ? D + K + p - decay [Phys. Rev. D 93 , 051101(R) (2016)]
in Physical Review D
Palla F
(2016)
Track Finding in CMS for the Level-1 Trigger at the HL-LHC
in Journal of Instrumentation
Description | Resources from this award funded our knowledge exchange programme, developing new detectors that are finding uses in medicine (radiotherapy), security and industrial applications. Findings have been discussed in outreach events, inspiring new generations and generating public interest. |
First Year Of Impact | 2015 |
Sector | Aerospace, Defence and Marine,Education,Energy,Healthcare,Security and Diplomacy |
Impact Types | Societal,Economic |
Description | DUNE UK Production Project |
Amount | £689,382 (GBP) |
Funding ID | ST/S00355X/1 |
Organisation | Science and Technologies Facilities Council (STFC) |
Sector | Public |
Country | United Kingdom |
Start | 10/2019 |
End | 09/2024 |
Description | Graphcore's IPUs |
Organisation | Graphcore |
Country | United Kingdom |
Sector | Private |
PI Contribution | Evaluating Graphcore's novel IPU processors, and, for the first time, implementing Particle Physics relevant software on them. Of particular interest not only to us, but also the community interested in these novel processors, is that we did not only use IPUs for machine learning (although we did that, too), but also non ML applications (Kalman Filter). Our work was also beneficial to our industrial partner in optimising and debugging their API. |
Collaborator Contribution | Cloud Access to IPUs and technical support. |
Impact | Paper: https://inspirehep.net/literature/1812756 (accepted for publication) |
Start Year | 2019 |
Description | Antimatter Matters |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Public/other audiences |
Results and Impact | LHCb-UK and Alpha-UK organised a joint stand at the Royal Society summer exhibition 2016. The Bristol Particle Physics group participated in the organisation (printing T-shirts, stickers) and the presentation of the exhibits during the event. Antimatter Matters has its own website and has been presented at several other events throughout the UK. |
Year(s) Of Engagement Activity | 2016 |
URL | http://www.antimatter-matters.org/ |
Description | Bristol Bright Night 2014 |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | Yes |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | Various STFC and ERC funded members of the university of Bristol gave public talks to audiences of various sizes (ranging from "pitch talks" of 5 min, to particle physicists contributing to a planetarium demonstration), we had a stall with particle physics-related activities and engaged with members of the public. Feedback was excellent. Positive audience feedback. |
Year(s) Of Engagement Activity | 2014 |
URL | http://www.bristol.ac.uk/public-engagement/events/2014/bristol-bright-night.html |
Description | Colloquium |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Other audiences |
Results and Impact | Public colloquium at the school of physics. |
Year(s) Of Engagement Activity | 2017 |
Description | Cosmic 100 project at Bristol Balloon Fiesta |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | Yes |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | Lots of discussions with the public at the LHC exhibit. Media coverage of balloon flight with particle detector. Don't know how to answer this. |
Year(s) Of Engagement Activity | 2012 |
URL | http://www.bris.ac.uk/news/2012/8694.html |
Description | Pint of Science |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | A talk and discussion on the theme of antimatter to a general audience in a pub (including a demonstration with a spark chamber through which muons and anti-muons passed), part of the "Pint of Science" series of events. |
Year(s) Of Engagement Activity | 2017 |
URL | https://pintofscience.co.uk/about/ |
Description | Women in STEMM |
Form Of Engagement Activity | Participation in an open day or visit at my research institution |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Schools |
Results and Impact | Event engaging year 8/9 students in science activities, with an emphasis on female role models. The Bristol particle physics group had a stand with hands-on activities, spark chamber, and a video presentation introducing famous female particle physicists. |
Year(s) Of Engagement Activity | 2017 |
URL | https://www.bristol.ac.uk/biochemistry/public/events/2017/event---women-in-stemm.html |