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Measurements of $CP$ violation in charmless two-body $B$ decays at LHCb

The study of charmless two-body B decays provides valuable information for testing the Cabibbo- Kobayashi-Maskawa paradigm of CP violation in the Standard Model. In addition, as the contri- bution of loop diagrams to the decay amplitudes are sizeable, the CP violation observables may be sensitive to...

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Detalles Bibliográficos
Autor principal: Perazzini, Stefano
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.180.0365
http://cds.cern.ch/record/2003069
Descripción
Sumario:The study of charmless two-body B decays provides valuable information for testing the Cabibbo- Kobayashi-Maskawa paradigm of CP violation in the Standard Model. In addition, as the contri- bution of loop diagrams to the decay amplitudes are sizeable, the CP violation observables may be sensitive to physics beyond the Standard Model. In this paper we present the latest measurements performed by the LHCb Collaboration in this sector. Of particular note are the first evidence of the B 0 ! p ̄ p decay, the best measurement to date of the direct CP asymmetry of the B + ! K 0 S K + decay, the first observation of CP violation in the decays of the B 0 s mesons with the measure- ment of A CP ( B 0 s ! p + K ) and the first measurement of the coefficients of the time-dependent CP asymmetry of the B 0 s ! K + K decay.