Identification of a bottom quark-antiquark pair in a single jet with high transverse momentum and its application

TL;DR

This paper presents a novel jet substructure technique in the jet's center-of-mass frame to identify bottom quark-antiquark pairs within high transverse momentum jets, aiding in boosted heavy particle detection.

Contribution

The paper introduces a new method leveraging jet substructure in the center-of-mass frame to distinguish $b\bar{b}$ pairs from QCD jets in high-energy collisions.

Findings

Effective discrimination of $b\bar{b}$ pairs from QCD jets.

Application to Higgs boson searches in associated production.

Potential improvement in boosted heavy particle identification.

Abstract

In this paper we introduce a new approach to identify a bottom quark-antiquark pair inside a single jet with high transverse momentum by using the jet substructure in the center-of-mass frame of the jet. We demonstrate that the method can be used to discriminate the boosted heavy particles decaying to a $b\bar{b}$ final state from QCD jets. Applications to searches for the standard model Higgs boson ($H$) decaying to $b\bar{b}$ when produced in association with a weak vector boson are also discussed.