R-parity violation: Neutrino masses, LSP decay and dark matter

por Martin Hirsch (IFIC)

jueves 29 sept. 2005 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

In the past few years experimental neutrino physics has enjoyed rapid progress. Experiments like Super-K, SNO and KamLAND have established non-zero neutrino masses (and mixing) beyond any reasonable doubt. The status of the theoretical modeling of neutrino masses, on the other hand, is far less satisfactory: Neither do we know the mechanism nor the energy scale at which neutrino masses are produced. In this talk I will focus on the idea that neutrino masses are generated around the electro­weak scale, with special emphasis on R-parity violating supersymmetric models. Compared to the classical seesaw mechanism, this kind of scenario has the advantage of being testable in the near future at the LHC and a possible International Linear Collider. Finally, I will briefly discuss the problem of dark matter in R-parity violating SUSY and one possible idea how to solve it.