Regular Article – Theoretical Physics
Explaining muon data in the SSM
Departamento de Física Teórica, Universidad Autónoma de Madrid (UAM), Campus de Cantoblanco, 28049, Madrid, Spain
2 Instituto de Física Teórica (IFT) UAM-CSIC, Campus de Cantoblanco, 28049, Madrid, Spain
3 Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warsaw, Poland
4 Instituto de Física de Buenos Aires UBA and CONICET, Departamento de Física, Facultad de Ciencia Exactas y Naturales, Universidad de Buenos Aires, 1428, Buenos Aires, Argentina
5 Pontificia Universidad Católica Argentina, 1107, Buenos Aires, Argentina
6 Department of Physics, University of Tokyo, 113-0033, Tokyo, Japan
Accepted: 1 February 2021
Published online: 15 February 2021
We analyze the anomalous magnetic moment of the muon in the SSM. This R-parity violating model solves the problem reproducing simultaneously neutrino data, only with the addition of right-handed neutrinos. In the framework of the 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 , solving the gap between the theoretical computation and the experimental data. To analyze the parameter space, we sample the SSM using a likelihood data-driven method, paying special attention to reproduce the current experimental data on neutrino and Higgs physics, as well as flavor observables such as B and decays. We then apply the constraints from LHC searches for events with multi-leptons + MET on the viable regions found. They can probe these regions through chargino–chargino, chargino–neutralino and neutralino–neutralino pair production. We conclude that significant regions of the parameter space of the can explain muon data.
© The Author(s) 2021
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