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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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| Item type | Article | ||||
| Journal or Publication Title | Physics Letters B | ||||
| Publisher: | Elsevier | ||||
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| Volume: | 734 | ||||
| Page Range: | pp. 137-143 | ||||
| Date | 2014 | ||||
| Additional Information (public) | SCOAP3 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun | ||||
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| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-326455 | ||||
| Item ID | 32645 |
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