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

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

2007-07-09

arxiv.org/abs/0707.1323v2

ECONFC070512:012,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 6 figures, talk at Flavor Physics and CP Violation Conference, Bled, 2007, referencing improved

Scientific paper

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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