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

ESSODJOLO KPATCHA, IÑAKI LARA, DANIEL E. LOPEZ -FOGLIANI, CARLOS MUÑOZ, NATSUMI NAGATA

EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS

SPRINGER

Lugar: Berlin; Año: 2021 vol. 81

1434-6044

Weanalyze the anomalous magnetic moment of the muon g−2 in the μνSSM.This R-parity violating model solves the μ problem reproducingsimultaneously neutrino data, only with the addition of right-handedneutrinos. In the framework of the μνSSM, light left muon-sneutrinoand wino masses can be naturally obtained driven by neutrino physics.This produces an increase of the dominant chargino-sneutrino loopcontribution to muon g−2, solving the gap between the theoreticalcomputation and the experimental data. To analyze the parameterspace, we sample the μνSSM using a likelihood data-driven method,paying special attention to reproduce the current experimental dataon neutrino and Higgs physics, as well as flavor observables such asB and μ decays. We then apply the constraints from LHC searches forevents with multi-leptons + MET on the viable regions found. They canprobe these regions through chargino-chargino, chargino-neutralinoand neutralino-neutralino pair production. We conclude thatsignificant regions of the parameter space of the μνSSM can explainmuon g−2 data.p { margin-bottom: 0.1in; line-height: 120%; }a:link { }