Neutralino and chargino masses beyond MSSM

Abstract

We study the implications of dimension five operators involving Higgs chiral superfields for the masses of neutralinos and charginos in the minimal supersymmetric standard model(MSSM). These operators can arise from additional interactions beyond those of MSSM involving new degrees of freedom at or above the TeV scale. We discuss the effect of these operators for different models of supersymmetry breaking gaugino masses. In addition to the masses of the neutralinos and charginos, we show that a sum rule involving the squares of the masses of these particles can be used to study the presence of the dimension five operators in the context of MSSM.