Abstract
It is well known that $R$-parity violating supersymmetric models predict a nonzero magnetic moment for neutrinos. In this work we study the Majorana neutrino transition magnetic moments within an RpV modified minimal supergravity model. Specifically, we discuss the contributions coming from the charged Higgs bosons, Higgsinos, leptons, sleptons, charged gauge bosons, and charginos. We use the experimental results from the MUNU Collaboration to restrict the model's parameter space. A comparison with two other types of contributions (only trilinear RpV couplings and trilinear plus neutrino-neutralino mixing) is also presented. We have found that the presently discussed processes dominate significantly, exceeding in some cases even the experimental limits.
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