Skip to main content

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:

ERC logo STFC logo Royal Society logo Marie Curie actions logo

A list of all the publications we have worked on is available under Physics Analysis.

Latest news

  • 19 April 2018: "Evidence for the decay B0s→K∗0barμ+μ" available as arXiv:1804.07167
  • 21 March 2018: "Mapping the material in the LHCb vertex locator using secondary hadronic interactions" available as arXiv:1803.07466
  • 19-20 March 2018: TORCH collaboration meeting hosted at University of Warwick.
  • 5 March 2018: "Selection and processing of calibration samples to measure the particle identification performance of the LHCb experiment in Run 2" available as arXiv:1803.00824
  • 25 December 2017: "Unbinned model-independent measurements with coherent admixtures of multibody neutral D meson decays" available as arXiv:1712.08326. Update 10 February 2018: published as EPJ C78 (2018) 121
  • 22 December 2017: "Optimising sensitivity to γ with B0→DK+π, D→K0Sπ+π double Dalitz plot analysis" available as arXiv:1712.07853. Update 5 March 2018: published as PR D97 (2018) 056002
  • 28 November 2017: "Laura++ : a Dalitz plot fitter" available as arXiv:1711.09854
  • 3 October 2017: "Angular distribution of polarised Λb baryons decaying to Λl+l-" available as arXiv:1710.00746. Update 22 November 2017: published as JHEP 11 (2017) 138
  • 18 July 2017: "Experimental summary of the 52nd Rencontres de Moriond session on Electroweak Interactions and Unified Theories" available as arXiv:1707.05290
  • 7 July 2017: "Doubly charming discovery by LHCb" featured as a Warwick Research Nugget
  • 7 July 2017: "Updated branching fraction measurements of B0(s) → KS0h+h'- decays" available as arXiv:1707.01665. Update 12 November 2017: published as JHEP 11 (2017) 027
  • 17 May 2017: "Test of lepton universality with B0 → K*0l+l- decays" available as arXiv:1705.05802. Update 23 August 2017: published as JHEP 08 (2017) 055
  • 26 April 2017: "Observation of the B+ → D*-K+π+ decay" available as arXiv:1704.07581. Update 19 July 2017: published as PR D96 (2017) 011101(R)
  • 14 March 2017: Antimatter matters on display at the Big Bang Fair
  • 30 January 2017: "Study of the D0p amplitude in Λ0b→D0 decays" available as arXiv:1701.07873. Update 12 May 2017: published as JHEP 05 (2017) 030
  • 21 December 2016: "Measurement of the phase difference between short- and long-distance amplitudes in the B+ → K+μ+μ- decay" available as arXiv:1612.06764. Update 28 March 2017: published as EPJ C77 (2017) 161
  • 8 December 2016: "Observation of the decay Ξb→pKK" available as arXiv:1612.02244. Update 16 February 2017: published as PRL 118 (2017) 071801. Featured as a Warwick Research Nugget
  • 10 November 2016: "Measurement of the CKM angle γ from a combination of LHCb results" available as arXiv:1611.03076. Update 22 December 2016: published as JHEP 12 (2016) 087
  • 15 September 2016: Daniel Craik awarded inaugural LHCb thesis prize
  • 4 August 2016: "Amplitude analysis of B- → D+π-π- decays", available as arXiv:1608.01289. Update 6 October 2016: published as PR D94 (2016) 072001
  • 2 August 2016: "Search for structure in the B0sπ± invariant mass spectrum", available as arXiv:1608.00435. Update 6 October 2016: published as PRL 117 (2016) 152003. Featured as a Warwick Research Nugget

The Group

detectorplan1.jpg

People

  • Tim Gershon (academic)
  • Michal Kreps (academic)
  • John Back (STFC Senior Research Fellow)
  • Tom Blake (Royal Socity University Research Fellow)
  • Tom Latham (STFC Senior Research Fellow)
  • Anton Poluektov (STFC Senior Research Fellow)
  • Abhijit Mathad (Ph.D. student)
  • Andrew Crocombe (Ph.D. student)
  • David Loh (Ph.D. student)
  • Cayo Costa Sobral (Ph.D. student)
  • Edward Millard (Ph.D. student)
  • Arnau Brossa Gonzalo (Ph.D. student)

Activities

cernmap.jpg



VELO

We are members of the VErtex LOcator subdetector group and authors of the VELO performance paper (arXiv:1405.7808).

vel-3mod.jpgvelo-frame.jpg


Simulation

We are responsible for the EvtGen Monte Carlo generator within the experiment.

Trigger and data stripping

We are involved with the HLT2 (high-level trigger) and data stripping activity.

Upgrade

We are interested in the physics potential of an LHCb upgrade. In particular, we are examining the requirements that operating at much higher rates will impose on the vertex detector. We are involved in the upgrade of the VELO subdetector.

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 left the field of particle physics
  • 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

Completed grants