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arXiv · 0803.3729

Is there a non-Standard-Model contribution in non-leptonic b -> s decays?

Thorsten Feldmann·Martin Jung·Thomas Mannel
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Abstract

Precision measurements of branching fractions and CP asymmetries in non-leptonic b -> s decays reveal certain "puzzles" when compared with Standard Model expectations based on a global fit of the CKM triangle and general theoretical expectations. Without reference to a particular model, we investigate to what extent the (small) discrepancies observed in (B -> J/psi K), (B -> phi K) and (B -> K pi) may constrain new physics in (b -> s q qbar) operators. In particular, we compare on a quantitative level the relative impact of different quark flavours q=c,s,u,d.

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Thorsten Feldmann, Martin Jung, Thomas Mannel. 2008-12-10. Is there a non-Standard-Model contribution in non-leptonic b -> s decays?. https://doi.org/10.1088/1126-6708%2F2008%2F08%2F066

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