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Two-loop evolution equations for flavor-singlet light-ray operators

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Braun, V. M. ; Manashov, A. N. ; Moch, S. ; Strohmaier, M.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 06 Apr 2021 13:48


QCD in non-integer d = 4 − 2ϵ space-time dimensions enjoys conformal invariance at the special fine-tuned value of the coupling. Counterterms for composite operators in minimal subtraction schemes do not depend on ϵ by construction, and therefore the renormalization group equations for composite operators in physical (integer) dimensions inherit conformal symmetry. This observation can be used to ...


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