$J_{E_T}^{\rm II}$: A Two-prong Jet Finding Algorithm

TL;DR

The paper introduces a new global jet-finding algorithm, $J_{E_T}^{\rm II}$, optimized for reconstructing two-prong objects like hadronic weak gauge bosons at hadron colliders, showing competitive or superior performance to existing methods.

Contribution

A novel jet-finding algorithm based on a $J_{E_T}^{\rm II}$ function that enhances two-prong structure identification for boosted weak gauge bosons.

Findings

Achieves similar or better identification of boosted weak gauge bosons compared to traditional methods.

Utilizes a modified second Fox-Wolfram moment to favor two-prong jet structures.

Effective for both Standard Model processes and heavy di-boson resonance decays.

Abstract

We propose a new global jet-finding algorithm for reconstructing two-prong objects like hadronic weak gauge bosons at a hadron collider. The selection of particles in a two-prong jet is required to maximize a $J_{E_T}^{\rm II}$ function, which contains a modified second Fox-Wolfram moment and prefers a two-prong structure for a fixed jet mass. Compared to the traditional jet-substructure method, our algorithm can provide a similar or better performance for identifying boosted weak gauge bosons that are produced from either Standard Model processes or heavy di-boson resonance decays.