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
Khachatryan V
(2015)
Pseudorapidity distribution of charged hadrons in proton-proton collisions at s = 13 TeV
in Physics Letters B
Hoepfner K
(2015)
CMS upgrade and future plans
in EPJ Web of Conferences
Khachatryan V
(2016)
Search for two Higgs bosons in final states containing two photons and two bottom quarks in proton-proton collisions at 8 TeV
in Physical Review D
Khachatryan V
(2016)
Measurement of the Top Quark Pair Production Cross Section in Proton-Proton Collisions at v[s]=13 TeV.
in Physical review letters
Khachatryan V
(2016)
Search for new phenomena in monophoton final states in proton-proton collisions at s = 8 TeV
in Physics Letters B
Evdokimov O
(2016)
Decomposing energy balance contributions for quenched jets with CMS
in Nuclear Physics A
Khachatryan V
(2016)
Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at sqrt[s]=8 and 13 TeV.
in Physical review letters
Aaij R
(2016)
Measurement of the Difference of Time-Integrated CP Asymmetries in D^{0}?K^{-}K^{+} and D^{0}?p^{-}p^{+} Decays.
in Physical review letters
Aaij R
(2016)
Observation of B_{s}^{0}?D[over ¯]^{0}K_{S}^{0} and Evidence for B_{s}^{0}?D[over ¯]^{*}^{0}K_{S}^{0} Decays.
in Physical review letters
Aaij R
(2016)
Measurement of the B s 0 ? J / ? ? lifetime
in Physics Letters B
Kreis B
(2016)
Run 2 upgrades to the CMS Level-1 calorimeter trigger
in Journal of Instrumentation
Siklér F
(2016)
First 13 TeV results from CMS
in EPJ Web of Conferences
Elghozi T
(2016)
The D-material universe
in Journal of Cosmology and Astroparticle Physics
Khachatryan V
(2016)
Search for lepton flavour violating decays of the Higgs boson to et and eµ in proton-proton collisions at s = 8 TeV
in Physics Letters B
Khachatryan V
(2016)
A search for pair production of new light bosons decaying into muons
in Physics Letters B
Merola M
(2016)
Measurements of single top quark cross sections in pp collisions at 8 TeV with the CMS detector
in Nuclear and Particle Physics Proceedings
Aaij R
(2016)
Production of associated Y and open charm hadrons in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV via double parton scattering
in Journal of High Energy Physics
Jain G
(2016)
Design optimization of pixel sensors using device simulations for the phase-II CMS tracker upgrade
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Venditti R
(2016)
Identification of hadronic tau decays in CMS
in Nuclear and Particle Physics Proceedings
Faltova J
(2016)
Standard Model Higgs Results from ATLAS and CMS Experiments
in Acta Physica Polonica B
Khachatryan V
(2016)
Transverse momentum spectra of inclusive b jets in pPb collisions at s NN = 5.02 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
Anjos N
(2016)
Studies of jet cross-sections and production properties with the ATLAS and CMS detectors
in EPJ Web of Conferences
Aaij R
(2016)
Observation of the ? b 0 ? ? ? decay
in Physics Letters B
Romeo F
(2016)
Search for leptoquark-like signatures with the ATLAS and CMS detectors
in Nuclear and Particle Physics Proceedings
Zagozdzinska A
(2016)
New Fast Beam Conditions Monitoring (BCM1F) system for CMS
in Journal of Instrumentation
Azzurri P
(2016)
Measurements of the hadronic activity and the electroweak production in events with a Z boson and two jets in proton-proton collisions with the CMS experiment
in Nuclear and Particle Physics Proceedings
Kiesel M
(2016)
Searches for supersymmetry at CMS in final states with photons
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Search for supersymmetry in the multijet and missing transverse momentum final state in pp collisions at 13 TeV
in Physics Letters B
Bruner C
(2016)
Centrality and pseudorapidity dependence of the transverse energy flow in pPb collisions at s NN = 5.02 TeV
in Nuclear Physics A
Lujan P
(2016)
Search for long-lived particles at CMS
in Nuclear and Particle Physics Proceedings
Khachatryan V
(2016)
Search for W' decaying to tau lepton and neutrino in proton-proton collisions at s = 8 TeV
in Physics Letters B
Verwilligen P
(2016)
Muons in the CMS High Level Trigger System
in Nuclear and Particle Physics Proceedings
Vami T
(2016)
Calibration of the CMS Pixel Detector at the Large Hadron Collider
in Nuclear and Particle Physics Proceedings
Bergauer T
(2016)
Silicon sensor prototypes for the Phase II upgrade of the CMS tracker
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Aaij R
(2016)
Measurement of forward W ? e? production in pp collisions at s = 8 $$ \sqrt{s}=8 $$ 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
Kenzie M
(2016)
Search for Higgs bosons decaying into photons at CMS
in Nuclear and Particle Physics Proceedings
Aaij R
(2016)
First observation of the rare B + ? D + K + p - decay
in Physical Review D
Adinolfi, M
(2016)
LHCb Upgraded RICH 1 Engineering Design Review Report
Khachatryan V
(2016)
Search for a low-mass pseudoscalar Higgs boson produced in association with a b b ? pair in pp collisions at s = 8 TeV
in Physics Letters B
Aaij R
(2016)
First observation of the decay B s 0 ? K S 0 K *(892)0 at LHCb
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of the W boson helicity fractions in the decays of top quark pairs to lepton + jets final states produced in pp collisions at s = 8 TeV
in Physics Letters B
Olszewski M
(2016)
Higgs $\to \tau \tau $ Analysis in the CMS Experiment
in Acta Physica Polonica B
Ni H
(2016)
Measurements of K s 0 , ? + ? ? , and ?++ ?- production in pp, pPb, and PbPb collisions with CMS
in Nuclear Physics A
Khachatryan V
(2016)
Search for Narrow Resonances in Dijet Final States at sqrt[s]=8 TeV with the Novel CMS Technique of Data Scouting.
in Physical review letters
Aaij R
(2016)
Measurement of the properties of the ? b * 0 baryon
in Journal of High Energy Physics
Khachatryan V
(2016)
Measurement of inclusive jet production and nuclear modifications in pPb collisions at [Formula: see text].
in The European physical journal. C, Particles and fields
Aaij R
(2016)
Measurement of the mass and lifetime of the O b - baryon
in Physical Review D
Marinelli N
(2016)
CMS data preparation for Run II
in Nuclear and Particle Physics Proceedings
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 |