Theoretical status of B → K*μ+μ-: The path towards New Physics

4th Symposium on Prospects in the Physics of Discrete Symmetries

Descotes-Genon, Sébastien^1 ; Hofer, Lars^2 ; Matias, Joaquim^2 ; Virto, Javier^3

Laboratoire de Physique Théorique, CNRS/Univ. Paris-Sud 11 (UMR 8627), Orsay, Cedex

91405, France^1

Universitat Autònoma de Barcelona, Bellaterra, Barcelona

08193, Spain^2

Theoretische Physik 1, Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Siegen

57068, Germany^3

关键词: New physics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/631/1/012027/pdf
DOI  :  10.1088/1742-6596/631/1/012027

来源: IOP

【 摘 要 】

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-1dataset with the coefficient of the semileptonic operator O9being 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.