Lepton (Flavor) Violation: a Road to Multi-scale New Physics

by Antonio Masiero (Universita' di Padova)

Tuesday 22 Sept 2009, 17:15 → 18:15 Europe/Berlin

Max-Planck-Institut für Physik, Auditorium

Neutrino masses, together with the presence of Dark Matter, constitute the most striking evidence of the presence of New Physics beyond the Standard Model (SM). . On the theoretical side, the stabilization of the electroweak symmetry breaking scale calls for an ultraviolet completion of the SM at the TeV scale, with low-energy supersymmetry (SUSY) as a promising option for it. If Lepton number (L) is violated through a large right-handed neutrino Majorana mass in a SUSY invariant extension of the SM, then we can simultaneously account for small neutrino masses and for a stable cold DM candidate . In such a SUSY see-saw context both L and Lepton Flavor number (LF) are violated with relevant phenomenological implications directly probing regions of the SUSY parameter space which will be scrutinized in the LHC physics. In the talk the thorough complementarity of LHC, DM and LFV strategies to search for TeV New Physics will be discussed.