Speaker
Mr
Jonathan Hall
(University of Southampton)
Description
The E6SSM is an E6 GUT group inspired supersymmetric model. The low energy theory contains an extra U(1) gauge group and a standard model singlet that is only charged under this extra U(1). The LSP dark matter candidate typically comes from a new and approximately decoupled sector containing two inert extra generations of Higgsinos and singlinos, where inert means that their scalar superpartners do not get VEVs. This naturally light neutralino LSP can account for the observed cold dark matter relic density, somewhat independently of the rest of the model, provided that tan(beta) is less than about 2 and that various Yukawa couplings in the new inert sector satisfy certain conditions. After an introduction to these results these conditions are analysed in the context of a GUT constrained version of the model and some phenomenological implications of the inert sector of this model are briefly discussed.
Primary author
Mr
Jonathan Hall
(University of Southampton)
