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

Heike Boos·Thomas Mannel·Jurgen Reuter
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Abstract

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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Heike Boos, Thomas Mannel, Jurgen Reuter. 2004-03-08. The Gold-plated mode revisited: sin(2 beta) and B^0 to J/Psi K_S in the Standard Model. https://doi.org/10.1103/physrevd.70.036006

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