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:
-
- 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. https://doi.org/10.1103/physrevd.91.034035
Larkoski, Andrew J., Moult, Ian, and Neill, Duff. Fri .
"Building a better boosted top tagger". United States. https://doi.org/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 = {Fri Feb 27 00:00:00 EST 2015},
month = {Fri Feb 27 00:00:00 EST 2015}
}
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