Speaker
Lorenzo Calibbi
(ULB, Brussels)
Description
Light neutralino dark matter in the MSSM is only consistent with WMAP observations in a corner of the parameter space with peculiar features,
which imply that other SUSY particles must be light, in particular the lightest stau and higgsino-like neutralinos and charginos. These states can be copiously produced at the LHC via electro-weak Drell-Yan and lead to peculiar multi-tau and missing E_T signatures. We discuss the LHC potential of fully testing the light neutralino parameter space and the complementary information one can obtain from constraints of the invisible Higgs branching ratio.
Author
Lorenzo Calibbi
(ULB, Brussels)
