LHCb
The University of Warwick joined the LHCb collaboration in November 2008. We receive, or have received, funding from a number of external sources including:
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A list of all the publications we have worked on is available under Physics Analysis.
Latest news
- 1 July 2022: "Exotic hadron naming convention" available as arXiv:2206.15233
- 16 June 2022: "Averages of
b -hadron,c -hadron, andτ -lepton properties as of 2021" (HFLAV report) available as arXiv:2206.07501 - 1 June 2022: Springer Thesis Prize recognising outstanding PhD research awarded to Arnau Brossa Gonzalo for his thesis "First observation of and decays in LHCb", available as CERN-THESIS-2022-007
- 31 May 2022: "The role of multi-parton interactions in doubly-heavy hadron production" available as arXiv:2205.15681. #MWAPP
- 13 May 2022: "Dispersive bounds for local form factors in
Λb→Λ transitions" available as arXiv:2205.06041 - 25 April 2022: Advert for two Postdoctoral Research Associate positions in the Warwick LHCb group. Deadline May 22nd. See also INSPIREHEP jobs.
- 22 April 2022: Advert for Lecturer/Senior Lecturer at Monash University as part of our Monash-Warwick Alliance in Particle Physics #MWAPP. Deadline for applications: 2 June 2022.
- 9 February 2022: "Prospects for studies of
D*0→μ+μ− andB*0(s)→μ+μ− decays" available as arXiv:2202.03916. #MWAPP Update 19 May 2022: published as Eur. Phys. J. C82 (2022) 459 - 21 January 2022: "Considerations for the VELO detector at the LHCb Upgrade II" available as LHCb-PUB-2022-001
- 10 January 2022: Announcement of ERC Starting Grant award to Matt Kenzie for the KstarKstar project.
- 22 December 2021: "Observation of the B0 → D*bar0K+π− and Bs0 → D*bar0K−π+ decays" available as arXiv:2112.11428. Update 20 April 2022: published as PR D105 (2022) 072005
- 10 December 2021: "Custom Orthogonal Weight functions (COWs) for Event Classification" available as arXiv:2112.04574
- 19 November 2021: "Measurement of the photon polarization in Λb→Λγ decays" available as arXiv:2111.10194. Update 23 March 2022: published as PR D105 (2022) L051104
- 9 November 2021: "Testing the Standard Model with CP-asymmetries in flavour-specific non-leptonic decays" available as arXiv:2111.04478; update 17 June 2022 published as PR D105 (2022) 115023
- 7 October 2021: "Simultaneous determination of CKM angle γ and charm mixing parameters" available as arXiv:2110.02350, update 28 December 2021 published as JHEP 12 (2021) 141
- 13 September 2021: HQL2021 conference hosted at University of Warwick
- 7 September 2021: Monash Warwick Alliance video, including #MWAPP, available on YouTube
- 17 August 2021: "Search for the radiative Ξb− → Ξ−γ decay" available as arXiv:2108.07678, update 14 January 2022 published as JHEP 01 (2022) 069.
- 29 June 2021: LHCb's first measurement of W boson mass reported in CERN seminar. See also the Warwick EPP seminar. Update 3 September: "Measurement of the W boson mass" available as arXiv:2109.01113. Update 10 January 2022: published as JHEP 01 (2022) 036
- 8 June 2021: "Observation of the mass difference between neutral charm-meson eigenstates" available as arXiv:2106.03744. See associated STFC and University of Warwick press releases. Update 14 September 2021: published as PRL 127 (2021) 111801
- 3 May 2021: "Search for CP violation in Ξb− → pK−K− decays" available as arXiv:2104.15074. Update 20 September: published as PR D104 (2021) 052010
- 23 March 2021: LHCb releases 3.1σ evidence for lepton universality violation in B → Kl+l− decays, arXiv:2103.11769; see this great video for a general explanation of this result or this Warwick Knowledge Centre article. Update 15 March 2022: published as Nature Physics 18 (2022) 277
- 3 March 2021: More than 50 hadrons discovered at the LHC, as discussed in this Research Nugget
- 15 January 2021: "A simple method to determine curvature biases in track reconstruction in hadron collider experiments" available as arXiv:2101.05675; update 22 March 2021: published as EPJ C81 (2021) 251
The Group
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People
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Activities
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VELO
We are members of the VErtex LOcator subdetector group and authors of the VELO performance paper (arXiv:1405.7808). We are involved in the upgrade of the VELO subdetector, and planning for future upgrades to cope with ever higher data rates.
Simulation
We are responsible for the EvtGen Monte Carlo generator within the experiment.
Trigger, data stripping and real time analysis
We are involved with the HLT2 (high-level trigger), data stripping and real time analysis activity.
TORCH
We are members of the TORCH collaboration, carrying out R&D for a novel time-of-flight detector that could provide particle identification information, to discriminate between charged pions, kaons and protons at low momentum.
Physics Analysis (more information here)
We have leading roles in the collaboration in measurements related to the angle γ (gamma) of the so-called Unitarity Triangle and of rare b hadron decays mediated by the b→sμ+μ− transition. We also have interests in several other areas, particularly in analyses involving Dalitz plot analysis. We hosted an LHCb UK workshop on Dalitz plot analysis in October 2009.
Openings
Information on job openings and Ph.D. positions in the Warwick EPP group can be found here. Please feel free to contact us (T dot J dot Gershon at warwick dot ac dot uk) for more information or to discuss possibilities.
Theses and Alumni
- Paul Harrison (moved to ATLAS)
- Mark Whitehead CERN-THESIS-2012-130 "Observation of the decay B0→D0K+K− with the LHCb detector at CERN", moved to a CERN fellowship
- Matt Williams CERN-THESIS-2013-351 "Search for a wrong-flavour contribution to Bs→Dsπ decays and study of CP violation in Bs→DsK decays", moved to University of Birmingham
- David Dossett CERN-THESIS-2013-299 "Measurement of the B0d,s→K∗±h∓ decay branching fractions at the LHCb experiment", moved to University of Melbourne
- Matt Reid CERN-THESIS-2014-125 "Branching fraction measurements of B0(s)→J/ψK0Sh+h(′)− decays", took a job in the financial sector
- Tomas Pilar CERN-THESIS-2014-302 "Measurement of the neutral D meson mixing parameters in D0→KSπ+π− decays", took a job in software
- Rafael Silva Coutinho CERN-THESIS-2015-117 "Studies of charmless three-body b-hadron decays at LHCb", moved to University of Zurich, Switzerland
- Daniel Craik CERN-THESIS-2015-285 "A measurement of the CKM angle γ from studies of B→DKπ Dalitz plots", moved to University of Edinburgh
- Christoph Langenbruch (Marie Sklodowska-Curie Fellow at Warwick) moved to take up Emmy Noether fellowship at RWTH Aachen University, Germany
- Charlotte Wallace CERN-THESIS-2016-064 "Studies of excited D mesons in B meson decays", moved to University of Bristol and then to a civil service job
- Ronnie Rera CERN-THESIS-2017-018 "Search for the decay B+→D*−K+π+", went into officer training with the US Air Force
- Chris Everett CERN-THESIS-2016-322 "An angular analysis of Λb→Λμ+μ− decays at the LHCb experiment", moved to nuclear physics group at University of Liverpool
- Jean Wicht (Marie Sklodowska-Curie Fellow) returned to Switzerland and took a job in software
- Daniel O'Hanlon CERN-THESIS-2017-184 "Studies of CP-violation in charmless three-body b-hadron decays", moved to Universita Bologna, Italy with an INFN fellowship
- Wenbin Qian (Marie Sklodowska-Curie Fellow) moved to take up an academic position at UCAS, China
- Anton Poluektov (Postdoctoral research fellow) moved to take up an academic position at CPPM, Marseille
- David Loh (Ph.D. student), left academic research
- Abhijit Mathad CERN-THESIS-2018-237 "Search for CP violation in charmless three-body decays of strange-beauty baryons", moved to University of Zurich, Switzerland
- Andrew Crocombe CERN-THESIS-2018-360 "Studies of rare decays using the LHCb experiment", took a job in software
- Cayo Costa Sobral CERN-THESIS-2019-246 "Measurement of the relative branching fractions of charmless three-body B+ decays at LHCb", took a job in software
- Olli Lupton (Postdoctoral research fellow) moved to EPFL, working for the Blue Brain project
- Edward Millard CERN-THESIS-2020-306 "Studies of the rare decays B0 (Bs0) → π+π−μ+μ− with the LHCb experiment"
- Niladri Sahoo (Research Fellow) moved to University of Birmingham
- Arnau Brossa Gonzalo CERN-THESIS-2022-007 "First observation of and decays in LHCb", moved to Santiago de Compostela
Completed grants
- Advanced Techniques to Search for Physics Beyond the Standard Model with the LHCb Detector at CERN, funded through an ERC Starting Investigator grant (ERC-2009-StG; link to Warwick page)
- Exploring New Phenomena through Flavour Changing Neutral Currents with LHCb, funded through a Marie Sklodowska-Curie Intra-European Fellowship under FP7 (FP7-PEOPLE-2013-IEF; link to Warwick page)
- Understanding Matter-Antimatter Asymmetries in B Meson Decays to Three Particles, funded through a Marie Sklodowska-Curie Individual Fellowship under Horizon 2020 (H2020-MSCA-IF-2014)