4.3 Article

Lepton-flavor violation and (g-2)μ in the μνSSM

Journal

NUCLEAR PHYSICS B
Volume 873, Issue 2, Pages 300-324

Publisher

ELSEVIER
DOI: 10.1016/j.nuclphysb.2013.04.018

Keywords

Lepton-flavor violation; R-parity violation; Supersymmetry; Anomalous magnetic dipole moment

Funding

  1. National Natural Science Foundation of China (NNSFC) [10975027, 11275036, 11047002]
  2. Natural Science Fund of Hebei University [2011JQ05, 2012-242]

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Within framework of the mu from nu Supersymmetric Standard Model (mu nu SSM), exotic singlet right-handed neutrino superfields induce new sources for lepton-flavor violation. In this work, we investigate some lepton-flavor violating processes in detail in the mu nu SSM. The numerical results indicate that the branching ratios for lepton-flavor violating processes mu -> e gamma, tau -> mu gamma and mu -> 3e can reach 10(-12) when tan beta is large enough, which can be detected in near future. We also discuss the constraint on the relevant parameter space of the model from the muon anomalous magnetic dipole moment. In addition, from the scalars for the mu nu SSM we strictly separate the Goldstone bosons, which disappear in the physical gauge. (C) 2013 Published by Elsevier B.V.

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