A search for CP violating effects in the mixing of neutral B mesons is performed using a sample of 4.1 million hadronic Z decays collected with the ALEPH detector from 1991 to 1995. By studying time-dependent asymmetries in flavour-tagged samples of semileptonic and fully inclusive b-hadron decays, two measurements of the semileptonic asymmetry acp are extracted. No evidence for CP violation is observed, and the combined value a(CP) = -0.013 +/- 0.026 is obtained.
|Autori interni:||CREANZA, Donato Maria|
MAGGI, Giorgio Pietro
|Titolo:||Investigation of inclusive CP asymmetries in B-0 decays|
|Rivista:||THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS|
|Data di pubblicazione:||2001|
|Digital Object Identifier (DOI):||10.1007/s100520100644|
|Appare nelle tipologie:||1.1 Articolo in rivista|