Jet areas as a tool for background subtraction

TL;DR

This paper introduces a simple, generic method using jet areas to subtract soft background contributions in collider experiments, improving the accuracy of jet measurements in dense environments.

Contribution

The paper proposes a novel, straightforward technique based on jet areas for background subtraction in high-energy collider experiments.

Findings

Effective background subtraction in dense environments

Improved jet kinematic reconstruction accuracy

Applicable to various collider collision types

Abstract

In all modern hadronic colliders, jets recieve a large contribution from a soft background: pileup in the case of proton-proton collisions at the LHC, or the underlying event for heavy-ion collisions at RHIC or the LHC. In these proceedings, we present a generic and simple method, based on jet areas, to subtract the contribution of the soft background from the jets. This allows for more precise kinematic reconstruction of jets in dense environments.