Viability of SUSY-GUT paradigm after LHC

TL;DR

This paper evaluates the current viability of the SUSY-GUT paradigm post-LHC, establishing upper bounds on superpartner masses and analyzing the remaining parameter space for SUSY-GUT models.

Contribution

It provides updated limits on SUSY particle masses within the SUSY-GUT framework based on LHC data and theoretical assumptions.

Findings

Lightest gluino or Higgsino mass cannot exceed ~20 TeV.

Remaining parameter space for SUSY-GUT models is constrained but not excluded.

Energy upper bound for SUSY phenomenology observation is established.

Abstract

The SUSY-GUT paradigm is the most promising scenario for the physics beyond the Standard Model. After the LHC run I, it is of interest to reanalyze the room still remaining for SUSY-GUT inspired models and to study the limits on the SUSY mass spectrum. Assuming one step unification of gauge couplings, under some natural requirements we have obtained the energy upper bound for the observation of SUSY phenomenology. We found that in the SUSY-GUT framework the mass of lightest gluino or Higgsino cannot be larger than about 20 TeV.