R-Parity violating decays of the sneutrinos

por Diego Restrepo (Instituto de Física, Universidad de Antioquia, Colombia)

viernes 31 ene. 2003 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

We consider scenarios of bilinear R-Parity violation where the sneutrino is the LSP. The several sneutrinos can decay dominantly into b-bbar in a wide zone of the parameter space. This gives the possibility to put strong constraints on their masses. Moreover, it may be possible to prove the U_{e3} neutrino mixing directly in e+e- colliders via the R-Parity violating decays of the electronic sneutrinos. Similarly, the atmospheric mixing angle may be proved in muon colliders through the muonic sneutrino decays. In addition, the invisible decays of the sneutrinos are expected to be sensitive to misalignment origin responsible of the smallness of the neutrino mass.