Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming
Abstract Jet grooming is an important strategy for analyzing relativistic particle collisions in the presence of contaminating radiation. Most jet grooming techniques introduce hard cutoffs to remove soft radiation, leading to discontinuous behavior and associated experimental and theoretical challe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-09-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP09(2023)157 |
| _version_ | 1797371243875270656 |
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| author | Samuel Alipour-fard Patrick T. Komiske Eric M. Metodiev Jesse Thaler |
| author_facet | Samuel Alipour-fard Patrick T. Komiske Eric M. Metodiev Jesse Thaler |
| author_sort | Samuel Alipour-fard |
| collection | DOAJ |
| description | Abstract Jet grooming is an important strategy for analyzing relativistic particle collisions in the presence of contaminating radiation. Most jet grooming techniques introduce hard cutoffs to remove soft radiation, leading to discontinuous behavior and associated experimental and theoretical challenges. In this paper, we introduce Pileup and Infrared Radiation Annihilation (Piranha), a paradigm for continuous jet grooming that overcomes the discontinuity and infrared sensitivity of hard-cutoff grooming procedures. We motivate Piranha from the perspective of optimal transport and the Energy Mover’s Distance and review Apollonius Subtraction and Iterated Voronoi Subtraction as examples of Piranha-style grooming. We then introduce a new tree-based implementation of Piranha, Recursive Subtraction, with reduced computational costs. Finally, we demonstrate the performance of Recursive Subtraction in mitigating sensitivity to soft distortions from hadronization and detector effects, and additive contamination from pileup and the underlying event. |
| first_indexed | 2024-03-08T18:17:06Z |
| format | Article |
| id | doaj.art-dfe4fd742dfb4da4adf6acce97c01d69 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-08T18:17:06Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-dfe4fd742dfb4da4adf6acce97c01d692023-12-31T12:07:03ZengSpringerOpenJournal of High Energy Physics1029-84792023-09-012023918110.1007/JHEP09(2023)157Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet groomingSamuel Alipour-fard0Patrick T. Komiske1Eric M. Metodiev2Jesse Thaler3Center for Theoretical Physics, Massachusetts Institute of TechnologyCenter for Theoretical Physics, Massachusetts Institute of TechnologyCenter for Theoretical Physics, Massachusetts Institute of TechnologyCenter for Theoretical Physics, Massachusetts Institute of TechnologyAbstract Jet grooming is an important strategy for analyzing relativistic particle collisions in the presence of contaminating radiation. Most jet grooming techniques introduce hard cutoffs to remove soft radiation, leading to discontinuous behavior and associated experimental and theoretical challenges. In this paper, we introduce Pileup and Infrared Radiation Annihilation (Piranha), a paradigm for continuous jet grooming that overcomes the discontinuity and infrared sensitivity of hard-cutoff grooming procedures. We motivate Piranha from the perspective of optimal transport and the Energy Mover’s Distance and review Apollonius Subtraction and Iterated Voronoi Subtraction as examples of Piranha-style grooming. We then introduce a new tree-based implementation of Piranha, Recursive Subtraction, with reduced computational costs. Finally, we demonstrate the performance of Recursive Subtraction in mitigating sensitivity to soft distortions from hadronization and detector effects, and additive contamination from pileup and the underlying event.https://doi.org/10.1007/JHEP09(2023)157Jets and Jet SubstructureSpecific QCD PhenomenologyParton ShowerResummation |
| spellingShingle | Samuel Alipour-fard Patrick T. Komiske Eric M. Metodiev Jesse Thaler Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming Journal of High Energy Physics Jets and Jet Substructure Specific QCD Phenomenology Parton Shower Resummation |
| title | Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming |
| title_full | Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming |
| title_fullStr | Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming |
| title_full_unstemmed | Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming |
| title_short | Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming |
| title_sort | pileup and infrared radiation annihilation piranha a paradigm for continuous jet grooming |
| topic | Jets and Jet Substructure Specific QCD Phenomenology Parton Shower Resummation |
| url | https://doi.org/10.1007/JHEP09(2023)157 |
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