Speaker
Stefan Hesselbach
Description
We study the neutralino sector of the Minimal Non-minimal
Supersymmetric Standard Model (MNSSM) where the $\mu$ problem of the
Minimal Supersymmetric Standard Model (MSSM) is solved without
accompanying problems related with the appearance of domain walls.
In the MNSSM as in the MSSM the lightest neutralino can be the
absolutely stable lightest supersymmetric particle (LSP)
providing a good candidate for the cold dark matter component
of the Universe. In contrast with the MSSM the allowed range of
the mass of the lightest neutralino in the MNSSM is limited. We establish
the theoretical upper bound on the lightest neutralino mass in the
framework of this model and obtain an approximate solution for this
mass. Finally, cross sections for associated production of this
particle at the ILC are presented.
Primary author
Stefan Hesselbach
