I shall discuss how could emerge in the sneutrino sector in the NMSSM extended with right-handed neutrinos. I shall start with an introduction to sneutrino-antisneutrino oscillations. I shall then discuss how right-handed sneutrinos can be produced through the heavy Higgs portal and how this can lead to a same-sign dilepton signature in the presence of light higgsinos. I shall discuss the prospects of finding an excess at the LHC and if such an excess were seen, how could we extract information on the neutrino mass generation mechanism.
Rutherford Appleton Laboratory
Tuesday, November 12, 2019 - 12:30
Seminar room (46/5081)
Lepton number violating right-sneutrinos and the heavy Higgs portal