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:	High Energy Physics - Phenomenology High Energy Physics - Lattice
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:	http://arxiv.org/abs/2004.01043 Zobrazit plný text záznamu View this record from Arxiv