Measurement of the B-s(0) -> J/psi K-S(0) branching fraction

LHCb collaboration, Patrick Koppenburg*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


The B-s(0) -> J/psi K-s(0) branching fraction is measured in a data sample corresponding to 0.41 fb(-1) of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin 2 beta measurement from B-0 -> J/psi K-s(0)). The time-integrated branching fraction is measured to be B(B-s(0) -> J/psi K-s(0)) = (1.83 +/- 0.28) x 10(-5). This is the most precise measurement to date. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)172-179
Number of pages8
JournalPhysics Letters B
Issue number3
Publication statusPublished - 9 Jul 2012
Externally publishedYes




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