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arXiv · 1109.4890

Lepton electric and magnetic dipole moments via lepton flavor violating spin-1 unparticle interactions

A. Moyotl·A. Rosado·G. Tavares-Velasco
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Abstract

The magnetic dipole moment (MDM) and the electric dipole moment (EDM) of leptons are calculated under the assumption of lepton flavor violation (LFV) induced by spin-1 unparticles with both vector and axial-vector couplings to leptons,including a CP-violating phase. The experimental limits on the muon MDM and LFV process such as the decay l_i->i_jl_kl_k are then used to constrain the LFV couplings for particular values of the unparticle operator dimension d_U and the unparticle scale Λ_U, assuming that LFV transitions between the tau and muon leptons are dominant. It is found that the current experimental constraints favor a scenario with dominance of the vector couplings over the axial-vector couplings. We also obtain estimates for the EDMs of the electron and the muon, which are well below the current experimental limits.

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A. Moyotl, A. Rosado, G. Tavares-Velasco. 2011-09-22. Lepton electric and magnetic dipole moments via lepton flavor violating spin-1 unparticle interactions. https://doi.org/10.1103/physrevd.84.073010

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