CP asymmetry in B → φK S decays in left - right models and its implications on B s decays
نویسنده
چکیده
In left-right models the gluonic penguin contribution to b → ss̄s transition is enhanced by mt/mb due to the presence of (V+A) currents and by the larger values of loop functions than in the Standard Model. Together those may completely overcome the suppression due to small left-right mixing angle ξ <∼ 0.013. Two independent new phases in the B → φKS decay amplitude appearing in a large class of left-right models may therefore modify the time dependent CP asymmetry in this decay mode by O(1) and explain the recent BaBar and Belle CP asymmetry measurements in this channel. This new physics scenario implies observable deviations from the Standard Model also in Bs decays which could be measured at upcoming Tevatron and LHC. CERN-TH/2002-182 August 2002
منابع مشابه
CP asymmetry in B-->phiK(S) decays in left-right models and its implications for Bs decays.
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تاریخ انتشار 2002