A study of mixing and indirect CP violation in D-0 mesons through the determination of the parameters y(CP) and A(Gamma) 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-pi(+). The result measured using data collected by LHCb in 2010, corresponding to an integrated luminosity of 29 pb(-1), is y(CP) = (5.5 +/- 6.3(stat) +/- 4.1(syst)) x 10(-3). The parameter A(Gamma) is the asymmetry of effective lifetimes measured in decays of D-0 and (D) over bar (0) mesons to K+K-. The result is A = (-5.9 +/- 5.9(stat) +/- 2.1(syst)) x 10(-3). A data-driven technique is used to correct for lifetime-biasing effects.
Aaij, R., Carboni, G., Santovetti, E., & et alii (2012). Measurement of mixing and CP violation parameters in two-body charm decays. JOURNAL OF HIGH ENERGY PHYSICS(4) [10.1007/JHEP04(2012)129].
Tipologia: | Articolo su rivista | |
Citazione: | Aaij, R., Carboni, G., Santovetti, E., & et alii (2012). Measurement of mixing and CP violation parameters in two-body charm decays. JOURNAL OF HIGH ENERGY PHYSICS(4) [10.1007/JHEP04(2012)129]. | |
Lingua: | English | |
Settore Scientifico Disciplinare: | Settore FIS/04 - Fisica Nucleare e Subnucleare | |
Revisione (peer review): | Esperti anonimi | |
Tipo: | Articolo | |
Rilevanza: | Rilevanza internazionale | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/JHEP04(2012)129 | |
Stato di pubblicazione: | Pubblicato | |
Data di pubblicazione: | 2012 | |
Titolo: | Measurement of mixing and CP violation parameters in two-body charm decays | |
Autori: | ||
Autori: | Aaij, R; Carboni, G; Santovetti, E; et alii | |
Appare nelle tipologie: | 01 - Articolo su rivista |