On Gaugino Dominated Dark Matter

TL;DR

This paper investigates the nature of dark matter within the Minimal Supersymmetric Standard Model, proposing a Bino-Wino mixture as a viable candidate with a mass above 65 GeV, grounded in theoretical analysis.

Contribution

It introduces a specific neutral gaugino mixture as a dark matter candidate and derives its mass bounds and theoretical origin within the MSSM framework.

Findings

Dark matter particle likely a Bino-Wino mixture

Mass bound for the dark matter particle is approximately 65 GeV or higher

Theoretical origin of the candidate is established within supersymmetry

Abstract

Using the neutral gauginos of SU(2)L* U(1)Y and hybridization ideas below the GUT scale, we approach the Dark Matter particle within the Minimal Supersymmetric Standard Model. In the energy range MGUT-MZ where supergravity effects can be ignored, it is proposed that such DM particle could be interpreted in terms of a mixture of Bino and Wino states with a lower bound mass MDM sup or eq to 65GeV not far above the electroweak scale to account for the observed Dark Matter density. We establish the theoretical origin of this particle and study as well its compositeness and its mass bound.