We discuss the leading-logarithmic power corrections in the N -jettiness subtraction scheme for higher-order perturbative QCD calculations. We compute the next-to-leading order power corrections for an arbitrary N -jet process, and we explicitly calculate the power correction through next-to-next-to-leading order for color-singlet production for both q q ¯ $$ q\overline{q} $$ and gg initiated processes. Our results are compact and simple to implement numerically. Including the leading power correction in the N -jettiness subtraction scheme substantially improves its numerical efficiency. We discuss what features of our techniques extend to processes containing final-state jets.
{ "_oai": { "updated": "2018-04-30T19:12:17Z", "id": "oai:repo.scoap3.org:19549" }, "authors": [ { "raw_name": "Boughezal, Radja", "affiliations": [ { "country": "USA", "value": "High Energy Physics Division, Argonne National Laboratory, Argonne, IL, 60439, U.S.A." } ], "surname": "Boughezal", "given_names": "Radja", "full_name": "Boughezal, Radja" }, { "surname": "Liu", "given_names": "Xiaohui", "raw_name": "Liu, Xiaohui", "affiliations": [ { "country": "China", "value": "Department of Physics, Beijing Normal University, Beijing, 100875, China" }, { "country": "China", "value": "Center of Advanced Quantum Studies, Beijing Normal University, Beijing, 100875, China" }, { "country": "China", "value": "Center for High-Energy Physics, Peking University, Beijing, 100871, China" }, { "country": "USA", "value": "Maryland Center for Fundamental Physics, University of Maryland, College Park, MD, 20742, U.S.A." } ], "full_name": "Liu, Xiaohui", "orcid": "0000-0002-7701-1205" }, { "raw_name": "Petriello, Frank", "affiliations": [ { "country": "USA", "value": "Department of Physics & Astronomy, Northwestern University, Evanston, IL, 60208, U.S.A." }, { "country": "USA", "value": "High Energy Physics Division, Argonne National Laboratory, Argonne, IL, 60439, U.S.A." } ], "surname": "Petriello", "given_names": "Frank", "full_name": "Petriello, Frank" } ], "titles": [ { "source": "Springer/SISSA", "title": "Power corrections in the N -jettiness subtraction scheme" } ], "dois": [ { "value": "10.1007/JHEP03(2017)160" } ], "publication_info": [ { "page_start": "160", "material": "article", "journal_title": "Journal of High Energy Physics", "year": 2017 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2017-03-31T00:00:00", "source": "Springer/SISSA", "method": "scoap3", "submission_number": "c3124cf84c9f11e8b67702163e01809a" }, "page_nr": [ 26 ], "license": [ { "url": "http://creativecommons.org/licenses/by/4.0/", "license": "CC-BY-4.0" } ], "copyright": [ { "statement": "The Author(s)" } ], "control_number": "19549", "record_creation_date": "2017-03-31T00:00:00", "_files": [ { "checksum": "md5:7014ef3c4e97df1aa17fb8c33c8898ff", "filetype": "xml", "bucket": "96b24682-d14d-4caf-be82-fb3abf81da52", "version_id": "a328b451-3f08-4ebd-8142-f42ba398d99c", "key": "10.1007/JHEP03(2017)160.xml", "size": 81549 }, { "checksum": "md5:e5d1a895b52fef4ddce6344a2a5a171e", "filetype": "pdf/a", "bucket": "96b24682-d14d-4caf-be82-fb3abf81da52", "version_id": "153bdf2e-cd78-4d57-a6d7-f09956346fd1", "key": "10.1007/JHEP03(2017)160_a.pdf", "size": 555836 } ], "arxiv_eprints": [ { "categories": [ "hep-ph" ], "value": "1612.02911" } ], "abstracts": [ { "source": "Springer/SISSA", "value": "We discuss the leading-logarithmic power corrections in the N -jettiness subtraction scheme for higher-order perturbative QCD calculations. We compute the next-to-leading order power corrections for an arbitrary N -jet process, and we explicitly calculate the power correction through next-to-next-to-leading order for color-singlet production for both q q \u00af $$ q\\overline{q} $$ and gg initiated processes. Our results are compact and simple to implement numerically. Including the leading power correction in the N -jettiness subtraction scheme substantially improves its numerical efficiency. We discuss what features of our techniques extend to processes containing final-state jets." } ], "imprints": [ { "date": "2017-03-30", "publisher": "Springer/SISSA" } ] }