Light Stop from b-tau Yukawa Unification

TL;DR

This paper demonstrates that b-tau Yukawa unification within the constrained minimal supersymmetric model naturally leads to a light stop co-annihilation scenario, with specific predictions for superpartner masses and dark matter properties.

Contribution

It shows the successful implementation of b-tau Yukawa unification resulting in a distinctive supersymmetric mass spectrum with a light stop and bino-like dark matter candidate.

Findings

Light stop mass around 100-330 GeV

Gluino mass between 0.6-1.7 TeV

First two family squarks and sleptons in multi-TeV range

Abstract

We show that b-tau Yukawa unification can be successfully implemented in the constrained minimal supersymmetric model and it yields the stop co-annihilation scenario.The lightest supersymmetric particle is a bino-like dark matter neutralino, which is accompanied by a 10-20% heavier stop of mass ~ 100-330 GeV. We highlight some benchmark points which show a gluino with mass ~0.6 - 1.7 TeV, while the first two family squarks and all sleptons have masses in the multi- TeV range.