Revisiting Gluinos at LHC

TL;DR

This paper analyzes the LHC signatures of a specific supersymmetric model, the $G_2$-MSSM, and discusses current experimental exclusions of gluino masses around 1.5 TeV, highlighting differences from simplified models.

Contribution

It provides a detailed examination of LHC signatures for the $G_2$-MSSM and clarifies the current experimental constraints on gluino masses within this UV complete SUSY model.

Findings

Excludes gluino masses around 1.5 TeV.

Spectra with gluino masses of 1.7 and 1.9 TeV are still allowed.

Differences in decay topologies affect exclusion limits.

Abstract

We examine the experimental signature of a UV complete Supersymmetry (SUSY) theory, the $G_2$-MSSM. This model predicts that only some superpartners will be produced in possibly detectable amounts at LHC: $p p \rightarrow \tilde{g}\tilde{g}$, $p p \rightarrow \tilde{\chi}^{\pm}_1 \tilde{\chi}^{\mp}_1$, and $p p \rightarrow \tilde{\chi}^{0}_2 \tilde{\chi}^{\pm}_1$. We exclude spectra with $m_{\tilde{g}} \approx1.5$ TeV. While spectra with $m_{\tilde{g}} \approx1.7$ TeV and $m_{\tilde{g}} \approx1.9$ TeV are currently allowed (contrary to what is often claimed), data in hand could exclude these spectra. This is not in tension with reported exclusion limits due to the difference in decay topologies between simplified models and a UV motivated ($G_2$-MSSM) model.