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arXiv · 1012.3551

Electroweak penguins in isospin-violating B_s decays

Lars Hofer·Dominik Scherer·Leonardo Vernazza
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Abstract

The 2.5 sigma discrepancy between theory and experiment observed in the difference Delta ACP = ACP(B- --> pi0 K-) - ACP(Bb0 --> pi+ K-) can be explained by a new electroweak (EW) penguin amplitude. Motivated by this result, we have analyzed the purely isospin-violating decays B_s --> phi pi0 and B_s phi rho0, which are dominated by EW penguins. Our results extend the analysis in arXiv:0910.2809 and have recently been published in arXiv:1011.6319. Here we give a brief overview of the outcome.

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Lars Hofer, Dominik Scherer, Leonardo Vernazza. 2010-12-16. Electroweak penguins in isospin-violating B_s decays. https://arxiv.org/abs/1012.3551

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