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Braun, V. M. ; Chetyrkin, K. G. ; Kniehl, B. A.

Operator product expansion of the non-local gluon condensate

Braun, V. M., Chetyrkin, K. G. and Kniehl, B. A. (2021) Operator product expansion of the non-local gluon condensate. Journal of High Energy Physics 2021 (5), pp. 1-13.

Date of publication of this fulltext: 20 Feb 2022 15:18
Article
DOI to cite this document: 10.5283/epub.51750


Abstract

We consider the short-distance expansion of the product of two gluon field strength tensors connected by a straight-line-ordered Wilson line. The vacuum expectation value of this nonlocal operator is a common object in studies of the QCD vacuum structure, whereas its nucleon expectation value is known as the gluon quasi-parton distribution and is receiving a lot of attention as a tool to extract ...

We consider the short-distance expansion of the product of two gluon field strength tensors connected by a straight-line-ordered Wilson line. The vacuum expectation value of this nonlocal operator is a common object in studies of the QCD vacuum structure, whereas its nucleon expectation value is known as the gluon quasi-parton distribution and is receiving a lot of attention as a tool to extract gluon distribution functions from lattice calculations. Extending our previous study [1], we calculate the three-loop coefficient functions of the scalar operators in the operator product expansion up to dimension four. As a by-product, the three-loop anomalous dimension of the nonlocal two-gluon operator is obtained as well.



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Details

Item typeArticle
Journal or Publication TitleJournal of High Energy Physics
Publisher:Springer
Place of Publication:NEW YORK
Volume:2021
Number of Issue or Book Chapter:5
Page Range:pp. 1-13
Date25 May 2021
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Identification Number
ValueType
10.1007/JHEP05(2021)231DOI
KeywordsSHORT-DISTANCE PROPERTIES; COEFFICIENT FUNCTIONS; MASS CORRECTIONS; BETA-FUNCTION; QCD; RENORMALIZATION; CORRELATORS; ENERGY; Deep Inelastic Scattering (Phenomenology); QCD Phenomenology
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-517503
Item ID51750

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