Measurement of the CP -violating phaseϕsinB¯s0→J/ψπ+π−decays

2014/05/16 by LHCb collaboration, R. Aaij, B. Adeva +704 · 1 citation
Chemistry · Mathematics · Physics and Astronomy · #Algorithm #Amplitude #Analytical Chemistry (journal) #CP violation #Chemistry #High-Energy Particle Collisions Research #Large Hadron Collider #Luminosity #Mathematics #Optics #Particle physics #Particle physics theoretical and experimental studies #Phase (matter) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2014.06.079

published as Physics Letters B, 736, (2014) 186 · 14 pages, 5 figures

arxiv created 2014/05/16 · openalex publication_date 2014/07/03 · arxiv updated 2014/07/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

The mixing-induced CP-violating phase s in B 0 s and B 0 s decays is measured using the J / + -final state in data, taken from 3 fb -1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase s = 70 68 8 mrad. This result is consistent with the Standard Model expectation and previous measurements.

Citations

• Three Lectures on Meson Mixing and CKM phenomenology
• Review of Particle Physics
• Measurement of theCP-violating phaseβsJ/ψϕinBs0→J/ψϕdecays with the CDF II detector
• PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays
• Predictions of selected flavor observables within the standard model
• Precision physics withBs0→J/ψϕat the LHC: The quest for new physics
• S-waves and the measurement ofCPviolating phases inBsdecays
• Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set
• Measurement of the flavour-specific CP-violating asymmetry asls in Bs0 decays
• In pursuit of new physics withBsdecays
• TMVA - Toolkit for Multivariate Data Analysis
• Geant4 developments and applications
• Review of Particle Physics
• Determination of the Sign of the Decay Width Difference in theBs0System
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of resonant andCPcomponents inB¯s0→J/ψπ+π−decays

Cited by

• Measurement of the CP-violating weak phase ϕs and the decay width difference ΔΓs using the Bs0→J/ψ<mml:mspace width="0.2em"/>ϕ(1020) decay channel in pp collisions at s=8 TeV
• Time-dependent Dalitz-plot formalism for Bq0→J/ψh+h−