Predictions for sin 2(beta/phi_1)_eff in b->s penguin dominated modes

Jure Zupan

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arXiv · 0707.1323

Predictions for sin 2(beta/phi_1)_eff in b->s penguin dominated modes

Jure Zupan

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Abstract

We provide a review of predictions for sin 2beta_eff in b->s penguin dominated modes based on 1/m_b expansion and/or SU(3) flavor symmetry. The experimental results are consistently lower than the theoretical predictions. In order to interpret whether this effect is a sign of new physics contributions or can be explained away within the Standard Model a theoretical input cannot be avoided. The effect survives at a level larger than 2.1 sigma in a conservative average over different modes that includes theoretical predictions.

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Jure Zupan. 2007-09-19. Predictions for sin 2(beta/phi_1)_eff in b->s penguin dominated modes. https://arxiv.org/abs/0707.1323

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