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Title: | First Evidence of Direct CP Violation in Charmless Two-Body Decays of B0s Mesons |
Author: | Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Gascón Fora, David Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Puig Navarro, Albert Roselló, M. Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-May-2012 |
Publisher: | American Physical Society |
Abstract: | Using a data sample corresponding to an integrated luminosity of 0.35 fb − 1 collected by LHCb in 2011, we report the first evidence of C P violation in the decays of B 0 s mesons to K ± π ∓ pairs, A C P ( B 0 s → K π ) = 0.27 ± 0.08 ( stat ) ± 0.02 ( syst ) , with a significance of 3.3 σ . Furthermore, we report the most precise measurement of C P violation in the decays of B 0 mesons to K ± π ∓ pairs, A C P ( B 0 → K π ) = − 0.088 ± 0.011 ( stat ) ± 0.008 ( syst ) , with a significance exceeding 6 σ . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.108.201601 |
It is part of: | Physical Review Letters, 2012, vol. 108, num. 20, p. 201601 |
URI: | http://hdl.handle.net/2445/133693 |
Related resource: | https://doi.org/10.1103/PhysRevLett.108.201601 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Física de la Matèria Condensada) |
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