Distinguishing b-quark and gluon jets with a tagged b hadron

Gonçalves, Dorival; Krauss, Frank; Linten, Robin

Abstract

Based on the knowledge of the QCD radiation pattern, observables to distinguish jets containing one and two b hadrons are discussed. A simple method is used to combine pairs of the most sensitive observables—girth, number of charged tracks and the energy or momentum fraction of the leading b hadron with respect to the jet—into one discriminator. Their efficiencies, on the particle level, are estimated and found to improve the performance and the robustness of the observables in different momentum slices.

Citation

Gonçalves, D., Krauss, F., & Linten, R. (2016). Distinguishing b-quark and gluon jets with a tagged b hadron. Physical Review D, 93(5), Article 053013. https://doi.org/10.1103/physrevd.93.053013

• Journal Article Type: Article
• Online Publication Date: Mar 18, 2016
• Publication Date: Mar 18, 2016
• Deposit Date: Mar 2, 2016
• Publicly Available Date: Apr 8, 2016
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 93
• Issue: 5
• Article Number: 053013
• DOI: https://doi.org/10.1103/physrevd.93.053013
• Public URL: https://durham-repository.worktribe.com/output/1410782