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Report number arXiv:1605.09768 ; CERN-EP-2016-133 ; LHCB-PAPER-2016-013 ; LHCB-PAPER-2016-013 ; CERN-EP-2016-133
Title Measurement of the CP asymmetry in B0s¯B0s mixing
Author(s) LHCb Collaboration  Show all 739 authors
Publication 2016-08-05
Imprint 01 Jun 2016
Number of pages 9
Note All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-013.html
In: Phys. Rev. Lett. 117 (2016) pp.061803
Phys. Rev. Lett. 118 (2017) pp.129903
DOI 10.1103/PhysRevLett.117.061803
10.1103/PhysRevLett.118.129903 (Addendum)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; B physics ; CP violation ; experimental results
Abstract The CP asymmetry in the mixing of B0s and ¯B0s mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. Semileptonic B0s and ¯B0s decays are studied in the inclusive mode Dsμ±(¯ν)μX with the Ds mesons reconstructed in the K+Kπ final state. Correcting the observed charge asymmetry for detection and background effects, the CP asymmetry is found to be assl=(0.39±0.26±0.20)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of assl to date, and is consistent with the prediction from the Standard Model of particle physics.
Copyright/License preprint: © 2016-2024 CERN (License: CC-BY-4.0)
publication: © 2016-2024 CERN (License: CC-BY-3.0)



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 Záznam vytvorený 2016-06-01, zmenený 2024-08-17


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