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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 (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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