Jet Trimming

TL;DR

Jet trimming is a new technique to reduce contamination in jets caused by initial state radiation, multiple interactions, and pileup, improving event reconstruction especially at high-energy colliders like the LHC.

Contribution

The paper introduces jet trimming, a novel method to mitigate contamination in light-parton jets, complementing existing techniques for boosted heavy particles.

Findings

Jet trimming significantly improves jet reconstruction accuracy.

The method is particularly effective at high energy and luminosity conditions.

Jet trimming enhances the quality of data analysis in collider experiments.

Abstract

Initial state radiation, multiple interactions, and event pileup can contaminate jets and degrade event reconstruction. Here we introduce a procedure, jet trimming, designed to mitigate these sources of contamination in jets initiated by light partons. This procedure is complimentary to existing methods developed for boosted heavy particles. We find that jet trimming can achieve significant improvements in event reconstruction, especially at high energy/luminosity hadron colliders like the LHC.