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Title Polarized gluon pseudodistributions at short distances
Authors Anatoly Radyushkin, Ian Balitsky, Wayne Morris
JLAB number JLAB-THY-21-3547
LANL number arXiv:2112.02011
Other number DOE/OR/23177-5380
Document Type(s) (Journal Article) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)
 

Journal
Compiled for Journal of High Energy Physics
Volume 2002
Issue 2
Page(s) 193
Refereed
Publication Abstract: We formulate the basic points of the pseudo-PDF approach to lattice calculation of polarized gluon PDFs. We present the results of our calculations of the one-loop corrections for the bilocal $G_{\mu \alpha}(z) \widetilde G_{\lambda \beta}(0)$ correlator of gluonic fields. Expressions are given for a general situation when all four indices are arbitrary,and also for specific combinations of indices corresponding to three matrix elements that contain the structures containing the twist-2 invariant amplitude related to the polarized PDF. We study the evolution properties of these matrix elements, and derive matching relations between Euclidean and light-cone Ioffe-time distributions. These relations are necessary for extraction of the polarized gluon distributions from the lattice data.
Experiment Numbers: other
Group: THEORY CENTER
Document: pdf
DOI: https://doi.org/10.1007/JHEP02(2022)193
Accepted Manuscript: Balitsky2022_Article_PolarizedGluonPseudodistributi.pdf
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