糖心TV

The project BSMwLHCb is funded by an Starting Investigator grant to run from 1 Feb. 2010 to 31 January 2016. The full title is

"Advanced Techniques to Search for Physics Beyond the Standard Model with the LHCb Detector at CERN"

A can be found on the website.

Objectives

• To develop advanced techniques based on Dalitz plot analysis to improve the physics reach of LHCb.
• To study potential systematic biases in the analysis techniques and to ensure that these remain below the level of achievable statistical precision.
• To deploy these techniques and to make precise measurements of fundamental parameters, including:
  • the Unitarity Triangle angle γ,
  • the Unitarity Triangle angle β,
  • the CP-violating phase of B_s⁰–B_s⁰bar oscillations, ϕ_s,
  • the CP-violating phase of D⁰ –D⁰bar oscillations, ϕ_D.
• To make multiple measurements of these parameters using decays mediated by different quark-level transitions in order to over-constrain the Standard Model.
• To train students in the use of the advanced analysis techniques that have been developed, and to promote their use more widely.
• To advance the sensitivity to effects of new particles contributing in loops to the extent that such contributions will be definitively observed or highly constrained.

Links

Personnel

• Tim Gershon (PI)
• Tom Latham (post doc)
• Mark Whitehead (post doc, Apr. 2012 - Aug.2015)
• Tomas Pilar (Ph.D. student, Oct. 2010 - Mar. 2014)
• Matthew Reid (Ph.D. student, Oct. 2010 - Mar. 2014)
• Eugenia Puccio (Ph.D. student, Apr. 2011 - Jun. 2011)
• Rafael Coutinho (Ph. D. student, Oct. 2011 - Mar. 2015)
• Daniel Craik (Ph.D. student, Oct. 2011 - Aug. 2015)
• Charlotte Wallace (Ph.D. student since Oct. 2012)
• Daniel O'Hanlon (Ph.D. student since Oct. 2013)

Publications

The is given on the website of the LHCb experiment. A is also available. Here only the papers most relevant to the project are listed:

• “ΔΓd: A Forgotten Null Test of the Standard Model,” T. Gershon. published in .
• “Studies of beauty baryons decaying to Dpπ and DpK,” LHCb Collaboration. .
• “First observation of the decay Bs0bar→D0K*0 and measurement of the ratio of branching fractions B(Bs0bar→D0K*0)/B(Bd0bar→D0ρ0),” LHCb Collaboration. . . Published in :
• "Observation of excited Λ0b baryons," LHCb Collaboration. , published in
• "Branching fraction measurements of B0d,s decays to K0Sh±h′∓ final states, including first observation of B0s→K0SK±π∓," LHCb Collaboration. .
• "Observation of the decay B0 → D0bar K+ K- and evidence for Bs → D0bar K+ K-," LHCb Collaboration. , published in
• "Search for the decay Bs → D*-+ π+-," LHCb Collaboration. , published in
  
• "Measurement of the branching fractions of the decays B0s→D0barK−π+ and B0→D0barK+π−," LHCb Collaboration. , published in
  
• "Searches for B0(s)→J/ψ p pbar and B+→J/ψ p pbar π+ decays," LHCb Collaboration. , published in
  
• "Study of B0(s)→K0Sh+h′− decays with first observation of B0s→K0SK±π∓ and B0s→K0Sπ+π−," LHCb Collaboration. , published in
  
• "Studies of beauty baryon decays to D0ph− and Λ+ch− final states," LHCb Collaboration. , published in
  
• "Searches for Λ0b and Ξ0b decays to K0Spπ− and K0SpK− final states with first observation of the Λ0b→K0Spπ− decay," LHCb Collaboration. , published in
  
• "Observation of the B0s→J/ψK0SK±π∓ decay," LHCb Collaboration. , published in
• "Observation of overlapping spin-1 and spin-3 D0barK- resonances at mass 2.86 GeV/c2", LHCb Collaboration. , published in
  
• "Dalitz plot analysis of Bs0 → D0barK-π+ decays", LHCb Collaboration. , published in
  
• "Observation of Bs0→K*+-K-+ and evidence for Bs0→K*-π+ decays", LHCb Collaboration. , published in
  
• "JFIT: a framework to obtain combined experimental results through joint fits", T. Latham et al.
• "First observation and amplitude analysis of the B−→D+K−π− decay", LHCb Collaboration. , published in
  
• "Amplitude analysis of B0→ D0barK+π- decays", LHCb Collaboration. , published in
• "Search for the decay Bs0→ D0bar f0(980)", LHCb Collaboration. , published in
• "Contributions to the width difference in the neutral D system from hadronic decays", T. Gershon, J. Libby and G. Wilkinson, , published in
• "Model-independent measurement of mixing parameters in D0→KSπ+π− decays", , published in
  
• "First observation of the rare B+→D+K+π− decay", , published in
• "Constraints on the unitarity triangle angle γ from Dalitz plot analysis of B0→DK+π− decays", , published in
  
• "Observations of Λ0b→ΛK+π− and Λ0b→ΛK+K− decays and searches for other Λ0b and Ξ0b decays to Λh+h′− final states", , published as
  
• "The Laura++ Dalitz plot fitter", proceedings of Hadron 2015, available as
• "Amplitude analysis of B^- → D⁺π^-π^- decays", available as , published as