Exploring New Physics in C7-C7'
Abstract
We discuss the model dependence in the determination of the Wilson coefficient C7 that governs the radiative electromagnetic decays of B mesons in the Standard Model, by considering various extensions of the effective Hamiltonian used to describe such decays. We include already measured observables like the branching ratios of B->Xs mu+ mu- and B->Xs gamma, the isospin and CP asymmetries in B->K* gamma, as well as AFB and FL in B->K* l+ l-, adding the LHCb measurements presented at this conference. We explore the constraints on C7,C9,C10 as well as their chirality-flipped counterparts. We also discuss the transverse asymmetry AT2 which, once measured, may help to disentangle some of the scenarios considered.
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