Building a better boosted top tagger
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...
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| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/95766 https://orcid.org/0000-0002-3181-4301 https://orcid.org/0000-0002-4819-4081 https://orcid.org/0000-0002-5290-8315 |
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| author | Larkoski, Andrew Moult, Ian James Neill, Duff Austin |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Larkoski, Andrew Moult, Ian James Neill, Duff Austin |
| author_sort | Larkoski, Andrew |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T11:16:18Z |
| format | Article |
| id | mit-1721.1/95766 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:16:18Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/957662022-09-27T18:17:32Z Building a better boosted top tagger Larkoski, Andrew Moult, Ian James Neill, Duff Austin Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Larkoski, Andrew Moult, Ian James Neill, Duff Austin 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. United States. Dept. of Energy (Cooperative Research Agreement DE-SC00012567) United States. Dept. of Energy (Cooperative Research Agreement DE-SC0011090) MIT Department of Physics Pappalardo Program (Fellowship) Natural Sciences and Engineering Research Council of Canada 2015-03-03T19:35:57Z 2015-03-03T19:35:57Z 2015-02 2014-11 2015-02-27T23:00:06Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/95766 Larkoski, Andrew J., Ian Moult, and Duff Neill. “Building a Better Boosted Top Tagger.” Phys. Rev. D 91, no. 3 (February 2015). © 2015 American Physical Society https://orcid.org/0000-0002-3181-4301 https://orcid.org/0000-0002-4819-4081 https://orcid.org/0000-0002-5290-8315 en http://dx.doi.org/10.1103/PhysRevD.91.034035 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Larkoski, Andrew Moult, Ian James Neill, Duff Austin Building a better boosted top tagger |
| title | Building a better boosted top tagger |
| title_full | Building a better boosted top tagger |
| title_fullStr | Building a better boosted top tagger |
| title_full_unstemmed | Building a better boosted top tagger |
| title_short | Building a better boosted top tagger |
| title_sort | building a better boosted top tagger |
| url | http://hdl.handle.net/1721.1/95766 https://orcid.org/0000-0002-3181-4301 https://orcid.org/0000-0002-4819-4081 https://orcid.org/0000-0002-5290-8315 |
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