Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133070
Title: Measurement of the B-s(o) -> Ds-Ds+ and B-s(o) -> Ds-Ds+ Effective Lifetimes
Author: Badalov, Alexey
Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Oyanguren Campos, Arantza de
Potterat, Cédric
Ruiz, Hugo (Ruiz Pérez)
Ruiz Valls, Pablo
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 19-Mar-2014
Publisher: American Physical Society
Abstract: The first measurement of the effective lifetime of the ¯ B 0 s meson in the decay ¯ B 0 s → D − s D + s is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3     fb − 1 , collected by the LHCb experiment. The measured value of the ¯ B 0 s → D − s D + s effective lifetime is 1.379 ± 0.026 ± 0.017     ps , where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light ¯ B 0 s mass eigenstate of Γ L = 0.725 ± 0.014 ± 0.009     ps − 1 . The ¯ B 0 s lifetime is also measured using the flavor-specific ¯ B 0 s → D − D + s decay to be 1.52 ± 0.15 ± 0.01     ps .
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.112.111802
It is part of: Physical Review Letters, 2014, vol. 112, num. 11, p. 111802
URI: http://hdl.handle.net/2445/133070
Related resource: https://doi.org/10.1103/PhysRevLett.112.111802
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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