Abstract. We analyse the possibility of getting light long-lived charginos within the framework of the MSSM with gravity mediated SUSY breaking. This possibility can be realized in the so-called focus-point region of the parameter space. The mass degeneracy of higgsino-like chargino and two higgsino-like neutralinos is the necessary condition for a long lifetime. It requires the fine-tuning of parameters, but being a single additional constraint in the whole parameter space it can be fulfilled in the constrained MSSM along the border line where radiative electroweak symmetry breaking fails. In a narrow band close to the border line the charginos are long-lived particles. The cross-sections of their production and co-production at the LHC via electroweak interaction reach a few tenths of a pb.

Print publication: Issue 12 (December 2009)
Received 7 May 2009
Published 3 November 2009