Novel reconstruction technique for New Physics processes with initial state radiation

TL;DR

This paper introduces a new method to improve the reconstruction of heavy new particle masses at hadron colliders by mitigating the effects of initial state radiation, exemplified with gluino pair production.

Contribution

The paper presents a novel reconstruction technique that reduces initial state radiation effects, enabling clearer identification of particle decay endpoints.

Findings

Enhanced mass reconstruction accuracy for gluino decays

Clearer kinematic endpoints achieved

Reduced impact of initial state radiation effects

Abstract

At hadron colliders, the production of heavy new particles is associated with additional quarks and gluons with significant transeverse momentum. The additional jets complicates the reconstruction of new particle masses. Taking gluino pair production and decay at the Large Hadron Collider as an example, we develop a novel technique to reduce these effects, and to reconstruct a clear kinematical endpoint for the gluino decay products.