Renormalization of parton quasi-distributions beyond the leading order: spacelike vs. timelike
Autor: | Braun, V. M., Chetyrkin, K. G., Kniehl, B. A. |
---|---|
Rok vydání: | 2020 |
Předmět: | |
Zdroj: | JHEP 2007 (2020) 161 |
Druh dokumentu: | Working Paper |
DOI: | 10.1007/JHEP07(2020)161 |
Popis: | We argue that the renormalization factors for nonlocal quark-antiquark and gluon operators at space-like and time-like separations connected by a Wilson line coincide to all orders in perturbation theory. We calculate the anomalous dimensions and renormalization constants of quark-antiquark and gluon operators to three- and two-loop accuracy, respectively, and also compute vacuum expectation values of these operators to three-loop accuracy. Comment: 28 pages, 1 figure |
Databáze: | arXiv |
Externí odkaz: |