arXiv subjects

Satoshi Mizuta

Publications and source records attributed to Satoshi Mizuta.

2 recordsLinked to original sources

arXiv1992

Phenomenological Aspects of Supersymmetric Standard Models without Grand Unification

When the GUT relation on gaugino masses is relaxed, the mass and composition of the lightest neutralino are different from those in the GUT case. We discuss its phenomenological implications on the relic abundance of the neutralinos and on superparticle searches. In particular, we focus on the case where the neutral component of Winos dominates the lightest neutralino. It turns out the Wino-LSP is not a candidate for the dark matter.

hep-ph↗

arXiv1992

Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs

We calculate the relic abundance of Higgsino-dominant lightest superparticles, taking account of coannihilations with the superparticles which are almost degenerate with the lightest one. We show that their relic abundance is reduced drastically by the coannihilation processes and hence they are cosmologically of no interest.

hep-ph↗