The MSSM from SS breaking

por Mariano Quirós (IFAE)

martes 16 may. 2006 12:30 → 13:30 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

Extra dimensions present new mechanisms of supersymmetry breaking and thus new patterns of electroweak symmetry breaking. I will present a 5D model with Scherk-Schwarz supersymmetry breaking and a particular version of the MSSM as the effective theory. Supersymmetry breaking transmission is flavor blind. The fine tuning required to obtain the electroweak scale is found to be much smaller than in the MSSM, with essentially no fine-tuning for few TeV gaugino masses. All bounds from direct Higgs searches at LEP and from electroweak precision observables can be satisfied. The lightest supersymmetric particle is a (Higgsino-like) neutralino that can accomodate the abundance of Dark Matter consistently with recent WMAP observations.