Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133697
Title: Evidence for CP Violation in Time-Integrated D0→h−h+ Decay Rates
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
Musy, Marco
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: 12-Mar-2012
Publisher: American Physical Society
Abstract: A search for time-integrated C P violation in D 0 → h − h + ( h = K , π ) decays is presented using 0.62     fb − 1 of data collected by LHCb in 2011. The flavor of the charm meson is determined by the charge of the slow pion in the D * + → D 0 π + and D * − → ¯¯¯ D 0 π − decay chains. The difference in C P asymmetry between D 0 → K − K + and D 0 → π − π + , Δ A C P ≡ A C P ( K − K + ) − A C P ( π − π + ) , is measured to be [ − 0.82 ± 0.21 ( stat ) ± 0.11 ( syst ) ] % . This differs from the hypothesis of C P conservation by 3.5 standard deviations.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.108.111602
It is part of: Physical Review Letters, 2012, vol. 108, num. 11, p. 111602
URI: http://hdl.handle.net/2445/133697
Related resource: https://doi.org/10.1103/PhysRevLett.108.111602
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Física Quàntica i Astrofísica)

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