We summarize the status of the analysis of the 4-body angular distribution B→K∗(→Kπ)μ+μ− using a basis of optimized observables. We provide a New Physics interpretation of the pattern of deviations observed in the 1fb−1 dataset with the coefficient of the semileptonic operator O9 being the main responsible for this pattern. Also other scenarios involving more Wilson coefficients are briefly discussed. Further, we present a detailed description of each of the hadronic uncertainties entering our predictions and suggest possible tests for alternative hadronic explanations. Our most accurate SM predictions for the optimized observables in various bins including all uncertainties are also provided.
@article{arxiv.1503.03328,
title = {Theoretical status of $B \to K^* \mu^+\mu^-$: The path towards New Physics},
author = {Sebastien Descotes-Genon and Lars Hofer and Joaquim Matias and Javier Virto},
journal= {arXiv preprint arXiv:1503.03328},
year = {2015}
}
Comments
17 pages, 1 figure. Talk given at the Discrete 2014: Fourth Symposium on Prospects in the Physics of Discrete Symmetries