Renormalization of parton quasi-distributions beyond the leading order: spacelike vs. timelike

Braun, V. M. and Chetyrkin, K. G. and Kniehl, B. A. (2020) Renormalization of parton quasi-distributions beyond the leading order: spacelike vs. timelike. JOURNAL OF HIGH ENERGY PHYSICS (7): 161. ISSN 1029-8479,

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Abstract

We argue that the renormalization factors for non-local 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.

Item Type: Article
Uncontrolled Keywords: SHORT-DISTANCE PROPERTIES; OPERATOR PRODUCT EXPANSION; EFFECTIVE FIELD-THEORY; POSITION-SPACE; PHASE-FACTORS; QUARK MASSES; LIGHT-QUARK; HEAVY; QCD; CORRELATORS; NLO Computations; QCD Phenomenology
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Physics > Institute of Theroretical Physics > Chair Professor Braun
Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Depositing User: Dr. Gernot Deinzer
Date Deposited: 18 Mar 2021 07:29
Last Modified: 18 Mar 2021 07:29
URI: https://pred.uni-regensburg.de/id/eprint/44178

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