# Sleptons without Hadrons

## TL;DR

This paper demonstrates that dynamic jet vetoes significantly enhance the sensitivity of multilepton searches for supersymmetric particles at hadron colliders, outperforming traditional methods even with complex background processes.

## Contribution

It introduces and evaluates dynamic jet veto strategies for supersymmetry searches, showing improved detection sensitivity over conventional fixed vetoes.

## Key findings

- Dynamic jet vetoes improve search sensitivity across various measures.
- Non-perturbative effects and NLO jet merging do not diminish veto effectiveness.
- Dynamic vetoes outperform traditional fixed vetoes in simulated scenarios.

## Abstract

Multilepton searches for electroweakino and slepton pair production at hadron colliders remain some of the best means to test weak-scale supersymmetry. Searches at the CERN Large Hadron Collider, however, are limited by large diboson and top quark pair backgrounds, despite the application of traditional, central jet vetoes. In this context, we report the impact of introducing dynamic jet vetoes in searches for colorless superpartners. As a representative scenario, we consider the Drell-Yan production of a pair of right-handed smuons decaying into a dimuon system accompanied with missing transverse energy. As an exploratory step, we consider several global and local measures of the leptonic and hadronic activity to construct the veto. In most all cases, we find that employing a dynamic jet veto improves the sensitivity, independently of the integrated luminosity. The inclusion of non-perturbative multiple particle interactions and next-to-leading order jet merging does not alter this picture. Directions for further improvements are discussed.