Search for CP Violation in the Decays D0→K−K+ and D0→π−π+

We measure time-integrated C P -violating asymmetries of neutral charmed mesons in the modes D 0 → K − K + and D 0 → π − π + with the highest precision to date by using D 0 → K − π + decays to correct detector asymmetries. An analysis of 385.8     fb − 1 of data collected with the BABAR detector yie...

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Detalhes bibliográficos
Autores: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/138448
Acesso em linha:https://hdl.handle.net/2445/138448
Access Level:acceso abierto
Palavra-chave:Física de partícules
Experiments
Particle physics
Descrição
Resumo:We measure time-integrated C P -violating asymmetries of neutral charmed mesons in the modes D 0 → K − K + and D 0 → π − π + with the highest precision to date by using D 0 → K − π + decays to correct detector asymmetries. An analysis of 385.8     fb − 1 of data collected with the BABAR detector yields values of a K K C P = ( 0.00 ± 0.34 ( stat ) ± 0.13 ( syst ) ) % and a π π C P = ( − 0.24 ± 0.52 ( stat ) ± 0.22 ( syst ) ) % , which agree with standard model predictions.