vix.ing · top · new · best · stats · spec

Anomalous magnetic moment of muon and L-violating Supersymmetric Models

2001/07/26 by R. Adhikari, Adhikari, R., G. Rajasekaran +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0107279

11 pages, latex, 2 figures

arxiv created 2001/07/26 · arxiv updated 2009/11/30

Abstract

We consider L-violating Supersymmetric Models to explain the recent muon gμ -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 gμ-2 deviation as well as neutrino mass if one considers some horizontal symmetry for the lepton doublet. Our studies show that gμ -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 (∼ 100 GeV) and e-μ-τ universality violation may be observed experimentally in near future.

Related