DETERMINATION OF POSSIBLE VALUES INTERVALS OF NEUTRALINO MASSES IN FRAMEWORK OF MSSM AND NMSSM: TREE-LEVEL APPROXIMATION
Comparative analysis of neutralino sectors of two supersymmetric models (MSSM and NMSSM) is represented in the given work. The calculations of neutralino masses at the tree-level order as functions of free parameters of models taken into account the recent restrictions on these parameters are made. Possible values intervals of neutralino masses is determined. It is shown, that the mass of the lightest neutralino achieves 5.9991 TeV in MSSM and 962.9 GeV in NMSSM.