Majorana neutrino transition magnetic moments in left-right symmetric models

Abstract

Transition magnetic moments of Majorana neutrinos are discussed in the frame of the most natural version of the LR model (with left- and right-handed triplets and a bidoublet in the Higgs sector). We show that their largest values could be at most $6\cdot 10^{-13}{\mu }_B$ from diagrams with $W_L$ in the loop. This could happen for specific models where (i) neutrino-charged lepton mixing is maximal and (ii) ${\kappa }_1\simeq {\kappa }_2$ (VEVs for neutral Higgs fields in the bidoublet $\varphi$ are equal). Contributions from diagrams with charged Higgses in the loop are smaller than those in the SM with right-handed neutrinos.

4 pages. Presented at the ICHEP Conference, Vancouver, 1998. To appear in Proceedings

References in corpus (1)

• Limits on ${\nu }_{\mu }({\nu }_e)\to {\nu }_{\tau }$ oscillations and tau neutrino magnetic moment from neutrino-electron scattering

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