Fermion-boson loops with bilinear R-parity violation leading to Majorana neutrino mass and magnetic moments

TL;DR

This paper derives analytic formulas for one-loop Feynman diagrams in the R-parity violating MSSM, explaining how neutrino masses and magnetic moments can arise from bilinear and trilinear couplings.

Contribution

It provides the first comprehensive analytic expressions for these loop diagrams involving both bilinear and trilinear RpV couplings in the MSSM.

Findings

Analytic formulas for Majorana neutrino masses derived.

Expressions for neutrino magnetic moments obtained.

Framework applicable to R-parity violating supersymmetric models.

Abstract

We present analytic expressions corresponding to a set of one loop Feynman diagrams, built within R-parity violating (RpV) minimal supersymmetric standard model (MSSM). Diagrams involve both bilinear and trilinear RpV couplings and represent Majorana neutrino masses and magnetic moments.