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Braun, Vladimir M. ; Manashov, Alexander

Two-loop evolution equations for light-ray operators

Braun, Vladimir M. and Manashov, Alexander (2014) Two-loop evolution equations for light-ray operators. Physics Letters B 734, pp. 137-143.

Date of publication of this fulltext: 22 Oct 2015 07:53
Article
DOI to cite this document: 10.5283/epub.32645

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Abstract

QCD in non-integer d=4−2ϵ space–time dimensions possesses a nontrivial critical point and enjoys exact scale and conformal invariance. This symmetry imposes nontrivial restrictions on the form of the renormalization group equations for composite operators in physical (integer) dimensions and allows to reconstruct full kernels from their eigenvalues (anomalous dimensions). We use this technique to ...

QCD in non-integer d=4−2ϵ space–time dimensions possesses a nontrivial critical point and enjoys exact scale and conformal invariance. This symmetry imposes nontrivial restrictions on the form of the renormalization group equations for composite operators in physical (integer) dimensions and allows to reconstruct full kernels from their eigenvalues (anomalous dimensions). We use this technique to derive two-loop evolution equations for flavor-nonsinglet quark–antiquark light-ray operators that encode the scale dependence of generalized hadron parton distributions and light-cone distribution amplitudes in the most compact form.



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Details

Item typeArticle
Journal or Publication TitlePhysics Letters B
Publisher:Elsevier
Volume:734
Page Range:pp. 137-143
Date2014
Additional Information (public)SCOAP3
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Identification Number
ValueType
10.1016/j.physletb.2014.05.037DOI
Related URLs
URLURL Type
arXiv:1404.0863Preprint
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-326455
Item ID32645

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