The Gold-plated mode revisited: sin(2 beta) and B^0 to J/Psi K_S in the Standard Model

Details The Gold-plated mode revisited: sin(2 beta) and B^0 to J/Psi K_S in the Standard Model The Gold-plated mode revisited: sin(2 beta) and B^0 to J/Psi K_S in the Standard Model

2004-03-08

arxiv.org/abs/hep-ph/0403085v1

Phys.Rev. D70 (2004) 036006

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 4 postscript figures

Scientific paper

10.1103/PhysRevD.70.036006

We study the corrections to the determination of sin(2 beta) from the time dependent CP asymmetry of B^0 to J/Psi K_S 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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