Majorana neutrino transition magnetic moments in left-right symmetric models

Details Majorana neutrino transition magnetic moments in left-right symmetric models Majorana neutrino transition magnetic moments in left-right symmetric models

1998-11-26

arxiv.org/abs/hep-ph/9811477v1

Phys.Rev. D59 (1999) 013010

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.59.013010

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 $\phi$ are equal). Contributions from diagrams with charged Higgses in the loop are smaller than those in the SM with right-handed neutrinos.

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