One-loop matching for the twist-3 parton distribution gT (x)
Authors:
- S. Bhattacharya,
- Krzysztof Michał Cichy,
- M. Constantinou,
- A. Metz,
- Aurora Scapellato,
- F. Steffens
Abstract
Perturbative matching relates the parton quasidistributions, defined by Euclidean correlators at finite hadron momenta, to the light-cone distributions which are accessible in experiments. Previous matching calculations have exclusively focused on twist-2 distributions. In this work, we address, for the first time, the one-loop matching for the twist-3 parton distribution function gT(x). The results have been obtained using three different infrared regulators, while dimensional regularization has been adopted to deal with the ultraviolet divergences. We present the renormalized expressions of the matching coefficient for gT(x) in the MS¯ and modified MS¯ schemes. We also discuss the role played by a zero-mode contribution. Our results have already been used for the extraction of gT(x) from lattice QCD calculations. © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
- Record ID
- UAM137e1b1c91594a69a1aee40b5d46e255
- Author
- Journal series
- Physical Review D, ISSN 2470-0010, e-ISSN 2470-0029, [1538-4500, 1550-7998]
- Issue year
- 2020
- Vol
- 102
- No
- 3
- ASJC Classification
- DOI
- DOI:10.1103/PhysRevD.102.034005 Opening in a new tab
- URL
- https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089915902&doi=10.1103%2fPhysRevD.102.034005&partnerID=40&md5=9e86abf6299b3a3e8ce81835aea747c5 Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 140
- Score source
- journalList
- Score
- = 140.0, 30-12-2021, ArticleFromJournal
- Publication indicators
- = 15; = 5; : 2017 = 1.058; : 2019 (2 years) = 4.833 - 2019 (5 years) =4.012
- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM137e1b1c91594a69a1aee40b5d46e255/
- URN
urn:amu-prod:UAM137e1b1c91594a69a1aee40b5d46e255
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.