Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/58789
Title: | Measurement of mixing and CP violation parameters in two-body charm decays |
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: | Hadrons Gravitació Relativitat (Física) Teoria quàntica Teoria quàntica de camps Hadrons Gravitation Relativity (Physics) Quantum theory Quantum field theory |
Issue Date: | Apr-2012 |
Publisher: | Springer Verlag |
Abstract: | A study of mixing and indirect CP violation in D 0 mesons through the determination of the parameters y CP and A Γ is presented. The parameter y CP is the deviation from unity of the ratio of effective lifetimes measured in D 0 decays to the CP eigenstate K + K − with respect to decays to the Cabibbo favoured mode K −π+. The result measured using data collected by LHCb in 2010, corresponding to an integrated luminosity of 29 pb−1, is y CP = (5.5 ± 6.3stat ± 4.1syst) × 10−3. The parameter A Γ is the asymmetry of effective lifetimes measured in decays of D 0 and D¯¯¯0 mesons to K + K −. The result is A Γ = (−5.9 ± 5.9stat ± 2.1syst) × 10−3. A data-driven technique is used to correct for lifetime-biasing effects. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP04(2012)129 |
It is part of: | Journal of High Energy Physics, 2012, vol. 4, p. 129 |
URI: | http://hdl.handle.net/2445/58789 |
Related resource: | http://dx.doi.org/10.1007/JHEP04(2012)129 |
ISSN: | 1126-6708 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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