Neutrino mass and magnetic moment in supersymmetry without R-parity in the light of recent data

TL;DR

This paper investigates how R-parity-violating supersymmetry models can generate neutrino masses and magnetic moments, updating constraints with recent data and exploring future experimental improvements.

Contribution

It provides updated limits on lepton-number violating couplings and analyzes their impact on neutrino magnetic moments in supersymmetric models.

Findings

Updated upper bounds on $ ext{lambda}$ and $ ext{lambda'}$ couplings.

Implications for neutrino magnetic moments based on recent data.

Potential improvements from the GENIUS experiment.

Abstract

We consider the generation of neutrino Majorana mass and transition magnetic moment by the lepton-number violating $\lambda$ and/or $\lambda'$ couplings in R-parity-violating supersymmetric models. We update (and improve) the existing upper limits on the relevant couplings using the most recent data on neutrino masses and mixings, indicating also the possible improvement by the GENIUS project. We study the implication of this update on the induced neutrino magnetic moment.