Measurement of the Bs0→J/ψKS0 branching fraction

2012/05/31 by LHCb collaboration, Carlos Abellán Beteta, R. Aaij +601 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.1016/j.physletb.2012.05.062

published as Physics Letters B 713 (2012) pp. 172-179

openalex publication_date 2012/05/31 · arxiv created 2012/07/19 · arxiv updated 2012/07/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

The Bs0→J/ψKS0 branching fraction is measured in a data sample corresponding to 0.41fb−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin2β measurement from B0→J/ψKS0. The time-integrated branching fraction is measured to be B(Bs0→J/ψKS0)=(1.83±0.28)×10−5. This is the most precise measurement to date.

Citations

• Measurement of time-dependent CP asymmetry in B0→cc K(*)0 decays
• Review of Particle Physics
• CP-Violation in the Renormalizable Theory of Weak Interaction

Cited by

• Observations of Bs0→ψ(2S)η and B(s)0→ψ(2S)π+π− decays
• Implications of LHCb measurements and future prospects

Related

• Measurement of the branching fraction of B0 → J/ψπ0 decays
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• Measurement of the time-dependent CP asymmetries in B_s⁰→ J/ψK_{\rm S}⁰