Upper bound on the lightest neutralino mass in the Minimal Non--minimal Supersymmetric Standard Model

Abstract

We consider the neutralino sector in the Minimal Non--minimal Supersymmetric Standard Model (MNSSM). We argue that there exists a theoretical upper bound on the lightest neutralino mass in the MNSSM. An approximate solution for the mass of the lightest neutralino is obtained.

Presented at 13th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, 23-29 August 2007