%0 Journal Article
%T Long-lived Charginos in the Focus-point Region of the MSSM Parameter Space
%A Gladyshev
%A A. V.
%A Kazakov
%A D. I.
%A Paucar
%A M. G.
%J High Energy Physics - Phenomenology
%D 2008
%I 
%R 10.1088/0954-3899/36/12/125009
%X We analyse the possibility to get light long-lived charginos within the framework of the MSSM with gravity mediated SUSY breaking. We find out that this possibility can be realized in the so-called focus-point region of 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 tenth of pb.
%U http://arxiv.org/abs/0811.2911