Lepton flavor violating Z boson decays induced by scalar unparticle

Abstract

We predict the branching ratios of the lepton flavor violating Z boson decays Z\to e^{\pm} μ^{\pm}, Z\to e^{\pm} τ^{\pm} and Z\to μ^{\pm} τ^{\pm} in the case that the lepton flavor violation is carried by the scalar unparticle mediation. We observe that their BRs are strongly sensitive to the unparticle scaling dimension and the branching ratios can reach to the values of the order of 10^{-8}, for the heavy lepton flavor case, for the small values of the scaling dimension.

arXiv comment15 pages, 5 figures, 1 table

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• Lepton flavor violating decay Z-> l_i l_j in the 331 model
• Lepton electric and magnetic dipole moments via lepton flavor violating spin-1 unparticle interactions
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• The large CP phase in B(s)-anti-B(s) mixing from primary scalar unparticles