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CP asymmetries in B-s decays and spontaneous CP violation

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CP asymmetries in B-s decays and spontaneous CP violation

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Barenboim Szuchman, Gabriela Alejandra; Bernabeu Alberola, José; Matias, Joaquim; Raidal, Martti

Aquest document és un/a article, creat/da en: 1999

We study possible effects of new physics in CP asymmetries in two-body Bs decays in left-right models with spontaneous CP violation. Considering the contributions of new CP phases to the Bs mixing as well as to the penguin dominated decay amplitudes we show that, with the present constraints, large deviations from the standard model predictions in CP asymmetries are allowed in both cases. Detection of the new physics can be done by measuring non-zero asymmetries which are predicted to vanish in the standard model or by comparing two measurements which are predicted to be equal in the standard model. In particular, we show that the measurement of the CKM angle γ in electroweak penguin dominated processes B0s→ρ0η(′),ρ0ϕ can largely be affected by the new physics.

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