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

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Braun, V. M. ; Chetyrkin, K. G. ; Kniehl, B. A.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 01 Apr 2021 14:12


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.

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