Search for the lightest scalar top quark in R-parity violating decays at the LHC

TL;DR

This paper investigates the potential to discover light scalar top quarks at the LHC through R-parity violating decays, analyzing detector-level observables to estimate the mass reach.

Contribution

It presents a detailed analysis of stop production and decay via baryon-number violating couplings, extending the search sensitivity to masses up to approximately 600 GeV.

Findings

Stop masses up to ~600 GeV can be explored at the LHC.

The analysis depends on decay branching ratios and luminosity.

Extended scenarios could probe even larger masses.

Abstract

The scalar partner of the top quark (the stop) is relatively light in many models of supersymmetry breaking. We study the production of stops at the Large Hadron Collider (LHC) and their subsequent decays through baryon-number violating couplings such that the final state contains no leptons. A detailed analysis performed using detector level observables demonstrate that stop masses upto $\sim 600 \gev$ may be explored at the LHC depending on the branching ratios for such decays and the integrated luminosity available. Extended to other analogous scenarios, the analysis will, generically, probe even larger masses.