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Title: Building a better boosted top tagger

Abstract

Distinguishing hadronically decaying boosted top quarks from massive QCD jets is an important challenge at the Large Hadron Collider. In this paper we use the power-counting method to study jet substructure observables designed for top tagging, and gain insight into their performance. We introduce a powerful new family of discriminants formed from the energy correlation functions which outperform the widely used N-subjettiness. These observables take a highly nontrivial form, demonstrating the importance of a systematic approach to their construction.

Authors:
 [1];  [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1505739
Alternate Identifier(s):
OSTI ID: 1180849
Grant/Contract Number:  
SC0011090; SC0012567
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 3; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Larkoski, Andrew J., Moult, Ian, and Neill, Duff. Building a better boosted top tagger. United States: N. p., 2015. Web. doi:10.1103/physrevd.91.034035.
Larkoski, Andrew J., Moult, Ian, & Neill, Duff. Building a better boosted top tagger. United States. doi:10.1103/physrevd.91.034035.
Larkoski, Andrew J., Moult, Ian, and Neill, Duff. Fri . "Building a better boosted top tagger". United States. doi:10.1103/physrevd.91.034035. https://www.osti.gov/servlets/purl/1505739.
@article{osti_1505739,
title = {Building a better boosted top tagger},
author = {Larkoski, Andrew J. and Moult, Ian and Neill, Duff},
abstractNote = {Distinguishing hadronically decaying boosted top quarks from massive QCD jets is an important challenge at the Large Hadron Collider. In this paper we use the power-counting method to study jet substructure observables designed for top tagging, and gain insight into their performance. We introduce a powerful new family of discriminants formed from the energy correlation functions which outperform the widely used N-subjettiness. These observables take a highly nontrivial form, demonstrating the importance of a systematic approach to their construction.},
doi = {10.1103/physrevd.91.034035},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 3,
volume = 91,
place = {United States},
year = {2015},
month = {2}
}

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Cited by: 16 works
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