Searches for compressed SUSY models in leptonic final states with CMS

TL;DR

This paper reports on CMS searches for compressed SUSY models with leptonic final states, using the full Run 2 dataset to explore challenging parameter spaces related to low momentum leptons and top squark scenarios.

Contribution

It presents two new CMS analyses targeting compressed SUSY models with leptonic signatures, expanding the experimental search coverage for these difficult scenarios.

Findings

No significant excess observed in either search.

Constraints placed on SUSY parameter space.

Enhanced sensitivity to low momentum leptons and top squark models.

Abstract

Searches for supersymmetry (SUSY) models with a compressed mass spectrum are theoretically motivated but also pose experimental challenges. Two recent searches from the CMS Collaboration targeting leptonic final states that can originate from such models are presented. The first search investigates SUSY signatures with two opposite sign or three low momentum leptons, while the second probes the parameter space of top squark models, where the mass difference of the lightest SUSY particles is close to the mass of the top quark. Both searches are based on the full dataset collected by CMS during Run 2 of the Large Hadron Collider, corresponding to 137 fb$^{-1}$.