Anomalous magnetic moment of muon and L-violating Supersymmetric Models

R. Adhikari; G. Rajasekaran

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arXiv · hep-ph/0107279

Anomalous magnetic moment of muon and L-violating Supersymmetric Models

R. Adhikari·G. Rajasekaran

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Abstract

We consider L-violating Supersymmetric Models to explain the recent muon $g_μ -2$ deviation from the Standard Model. The order of trilinear L-violating couplings which we require also generate neutrino mass which is somewhat higher than expected unless one considers highly suppressed $L-R$ mixing of sfermions. However, without such fine tuning for sfermions it is possible to get appropriate muon $g_μ-2$ deviation as well as neutrino mass if one considers some horizontal symmetry for the lepton doublet. Our studies show that $g_μ -2$ deviation may not imply upper bound of about 500 GeV on masses of supersymmetric particles like chargino or neutralino as proposed by other authors for R parity conserving supersymmetric models. However, in our scenario sneutrino mass is expected to be light ($\sim 100$ GeV) and $e-μ-τ$ universality violation may be observed experimentally in near future.

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R. Adhikari, G. Rajasekaran. 2001-07-26. Anomalous magnetic moment of muon and L-violating Supersymmetric Models. https://arxiv.org/abs/hep-ph/0107279

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