Lepton Flavor Violation Unparticle Cause Decay

Standard model can afford masses for fermions and gauge bosons , but it cannot give the dynamic reason for the arising of masses.The radiative lepton decay with two photon outputÏ„â†'μγγis driven by a lepton flavor violating (LFV) mechanism and , in the framework of the SM ,this decay exists at least in the loop level and its branching ratio (BR) is highly suppressed.In the framework of the low energy effective theory , we study the radiative lepton flavor violatingÏ„â†'μγγdecay in the case that the lepton flavor violation is induced by the scalar unparticle mediation.We restrict the scaling dimension d_u and the scalar unparticle-photon-photon coupling by using the experimental upper limit of the branching ratio of the decayμâ†'eγγ. Furthermore , We also calculate the quantum correction of the decayÏ„â†'μγγin the view of the scalar unparticle .The researches of the semi-leptonic decay decayÏ„~-â†'e~-Ï€~+Ï€~- and the leptonic decayÏ„~-â†'e~-e~+e~- have merely been done in the frame of Standard Model, but have not been studied by the unparticlephysics.With testing the possible signals coming from unparticle physics , the quantum correction of the decay perhaps can be reserved .