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Type I + II Seesaw Model in light of the New Neutrino Oscillation Measurements
Maria Aguilar, Juan Carlos Helo, Toshihiko Ota +3
Global analysis of neutrino oscillation data slightly favors normal mass ordering. In this work, we investigate an extended scalar sector that naturally gives rise to a type I + II…
Invisible neutron decay and light BSM particles
J. C. Helo, M. Hirsch, T. Ota
In Standard Model Effective Field Theory (SMEFT), invisible neutron decay arises from d = 12 operators. Adding new light particles to the field content of the SM, such as right-han…
Searching for long-lived light neutralinos from -meson decays with baryonic R-parity violation at Belle II
Emilie Bertholet, Claudio O. Dib, Sara P. Gandelman +6
In a supersymmetry scenario with R-parity violation (RPV), neutralinos with GeV-scale mass, which are necessarily bino-like, are allowed by all constraints and can be produced in a…
Probing light neutralinos from pair-produced sleptons with displaced vertices at the high-luminosity LHC
Giovanna Cottin, Juan Carlos Helo, Fabián Hernández-Pinto +2
We study light neutralinos () with masses ranging from 10 GeV to several hundred GeV within the framework of R-parity-violating (RPV) supersymmetry. These light neutr…