Collinear drop
Abstract We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or insensitive to process-dependent soft radiation origi...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/131600 |
| _version_ | 1826193630899994624 |
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| author | Chien, Yang-Ting Stewart, Iain W |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Chien, Yang-Ting Stewart, Iain W |
| author_sort | Chien, Yang-Ting |
| collection | MIT |
| description | Abstract
We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or insensitive to process-dependent soft radiation originating from outside the jet. Such collinear drop observables can be exploited as variables to distinguish quark, gluon, and color neutral initiated jets, for testing predictions for perturbative soft radiation in Monte Carlo simulations, for assessing models and universality for hadronization corrections, for examining the efficiency of pileup subtraction methods, and for any other application that leaves an imprint on soft radiation. We discuss examples of collinear drop observables that are based both on clustering and on jet shapes. Using the soft-collinear effective theory we derive factorization expressions for collinear drop observables from QCD jets, and carry out a resummation of logarithmically enhanced contributions at next-to-leading-logarithmic order. We also identify an infinite class of collinear drop observables for which the leading double logarithms are absent. |
| first_indexed | 2024-09-23T09:42:12Z |
| format | Article |
| id | mit-1721.1/131600 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:42:12Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1316002024-01-02T15:55:00Z Collinear drop Chien, Yang-Ting Stewart, Iain W Massachusetts Institute of Technology. Center for Theoretical Physics Abstract We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or insensitive to process-dependent soft radiation originating from outside the jet. Such collinear drop observables can be exploited as variables to distinguish quark, gluon, and color neutral initiated jets, for testing predictions for perturbative soft radiation in Monte Carlo simulations, for assessing models and universality for hadronization corrections, for examining the efficiency of pileup subtraction methods, and for any other application that leaves an imprint on soft radiation. We discuss examples of collinear drop observables that are based both on clustering and on jet shapes. Using the soft-collinear effective theory we derive factorization expressions for collinear drop observables from QCD jets, and carry out a resummation of logarithmically enhanced contributions at next-to-leading-logarithmic order. We also identify an infinite class of collinear drop observables for which the leading double logarithms are absent. 2021-09-20T17:28:54Z 2021-09-20T17:28:54Z 2020-06-09 2020-06-26T13:26:08Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131600 Journal of High Energy Physics. 2020 Jun 09;2020(6):64 PUBLISHER_CC en https://doi.org/10.1007/JHEP06(2020)064 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Chien, Yang-Ting Stewart, Iain W Collinear drop |
| title | Collinear drop |
| title_full | Collinear drop |
| title_fullStr | Collinear drop |
| title_full_unstemmed | Collinear drop |
| title_short | Collinear drop |
| title_sort | collinear drop |
| url | https://hdl.handle.net/1721.1/131600 |
| work_keys_str_mv | AT chienyangting collineardrop AT stewartiainw collineardrop |