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http://hdl.handle.net/2445/185632| Title: | Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays |
| Author: | Camboni, Alessandro Comerma-Montells, A. Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Picatoste Olloqui, E. Potterat, C. Rives Molina, V. Ruiz, Hugo LHCb Collaboration |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | Jan-2014 |
| Publisher: | Elsevier B.V. |
| Abstract: | The CP-violating asymmetry a s sl is studied using semileptonic decays of B0 s and B0 s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0 fb−1 . The reconstructed final states are D± s µ ∓, with the D± s particle decaying in the φπ± mode. The D± s µ ∓ yields are summed over B0 s and B0 s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain a s sl = (−0.06 ± 0.50 ± 0.36)%, where the first uncertainty is statistical and the second systematic. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2013.12.030 |
| It is part of: | Physics Letters B, 2014, vol. 728, p. 607-615 |
| URI: | http://hdl.handle.net/2445/185632 |
| Related resource: | https://doi.org/10.1016/j.physletb.2013.12.030 |
| ISSN: | 0370-2693 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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