Explaining muon $g-2$ data in the $\mu\nu$SSM

Understand

We analyze the anomalous magnetic moment of the muon $g-2$ in the $\mu\nu$SSM.

• This $R$-parity violating model solves the $\mu$ problem reproducing simultaneously neutrino data, only with the addition of right-handed neutrinos.
• In the framework of the $\mu\nu$SSM, light left muon-sneutrino and wino masses can be naturally obtained driven by neutrino physics.
• This produces an increase of the dominant chargino-sneutrino loop contribution to muon $g-2$, solving the gap between the theoretical computation and the experimental data.