Corrections To B→X_sγ In The μv Supersymmetric Stand Model

The Standard Model describes the basic theory of electroweak interactions, and can self-consistently explain most of measured results in experiment. However, the Standard Model as a theory at the electroweak scale still has some limitations, which cannot explain the gauge hierarchy, neutrino mass, asymmetry of matter and antimatter in the universe and so on. In the letter, we introduce the Standard Model and the minimal supersymmetric extension of it briefly in the section1. In the section2, we present the μν Supersymmetric Standard Model (μνSSM), which introduces three singlet right-handed neutrino superfields to solve the μproblem and can generate three tiny Majorana neutrino masses through the seesaw mechanism. In the section3, we investigate the rare decay process B→Xxγ in the μνSSM.Under some reasonable assumptions on the parameter space, the numerical results show that the new physics can contribute with large corrections to the branching ratio of B→Xxγ, constrained by the SM Higgs with mass around125GeV.