The Gold-plated mode revisited: sin(2 beta) and B0 to J/Psi KS in the Standard Model
Abstract
We study the corrections to the determination of sin(2 beta) from the time dependent CP asymmetry of B0 to J/Psi KS which arise in the standard model. Although a precise prediction of these corrections is not possible we find that they are indeed extremely small, of the order of less than a per mil of the observed value. This means in turn that any deviation visible at the B factories will be a clear signal for new physics.
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