Three-particle templates for boosted Higgs

TL;DR

This paper investigates the use of three-particle templates to distinguish boosted Higgs bosons from QCD background, enhancing identification methods for massive neutral particles in collider experiments.

Contribution

It introduces a novel three-particle template technique combined with other variables to improve discrimination of Higgs signals from background noise.

Findings

Significant rejection power achieved with cut-based analysis.

Enhanced discrimination when combined with planar flow and other variables.

Effective in identifying highly boosted Higgs in collider events.

Abstract

We explore the ability of three-particle templates to distinguish color neutral objects from QCD background. This method is particularly useful to identify the standard model Higgs, as well as other massive neutral particles. Simple cut-based analysis in the overlap distributions of the signal and background is shown to provide a significant rejection power. By combining with other discriminating variables, such as planar flow, and several variables that depend on the partonic template, three-particle templates are used to characterize the influence of gluon emission and color flow in collider events. The performance of the method is discussed for the case of a highly boosted Higgs in association with a leptonically-decaying W boson.