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Report number arXiv:1204.1237 ; CERN-PH-EP-2012-091 ; LHCB-PAPER-2011-022 ; CERN-PH-EP-2012-091 ; LHCB-PAPER-2011-022
Title Measurement of the branching fractions of the decays B0sDsK± and B0sDsπ+
Author(s) LHCb Collaboration  Show all 594 authors
Publication 2012
Imprint 26 Apr 2012
Number of pages 4
Note Comments: 13+4 pages, 3 figures, submitted to JHEP
13+4 pages, 3 figures, submitted to JHEP
In: JHEP 06 (2012) 115
DOI 10.1007/JHEP06(2012)115
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; B physics ; branching fraction ; CKM angle gamma ; experimental results
Abstract The decay mode B0sDsK± allows for one of the theoretically cleanest measurements of the CKM angle γ through the study of time-dependent CP violation. This paper reports a measurement of its branching fraction relative to the Cabibbo-favoured mode B0sDsπ+ based on a data sample of 0.37 fb1 proton-proton collisions at s=7 TeV collected in 2011 with the LHCb detector. In addition, the ratio of B meson production fractions fs/fd, determined from semileptonic decays, together with the known branching fraction of the control channel B0Dπ+, is used to perform an absolute measurement of the branching fractions: B(B0sDsπ+)=(2.95±0.05±0.17+0.180.22)×103, B(B0sDsK±)=(1.90±0.12±0.13+0.120.14)×104, where the first uncertainty is statistical, the second the experimental systematic uncertainty, and the third the uncertainty due to fs/fd.
Related document Supersedes LHCb-CONF-2011-057
Copyright/License publication: © 2012-2025 CERN (License: CC-BY-3.0)
preprint: © 2012-2025 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: u.egede@imperial.ac.uk


 Záznam vytvorený 2012-04-26, zmenený 2024-08-17


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