STI Publications - View Publication Form #16129

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Publication Information
Title Gluon Pseudo-Distributions at Short Distances: Forward Case
Abstract We present the results that are necessary in the ongoing lattice calculations of the gluon parton distribution functions (PDFs) within the pseudo-PDF approach. We give a classification of possible two-gluon correlator functions and identify those that contain the invariant amplitude determining the gluon PDF in the light-cone z^2 -> 0 limit. One-loop calculations have been performed in the coordinate representation and in an explicitly gauge-invariant form. We made an effort to separate ultraviolet (UV) and infrared (IR) sources of the ln (-z^2)-dependence at short distances z^2. The UV terms cancel in the reduced Ioffe-time distribution (ITD), and we obtain the matching relation between the reduced ITD and the light-cone ITD. Using a kernel form, we get a direct connection between lattice data for the reduced ITD and the normalized gluon PDF. We also show that our results may be used for a rather straightforward calculation
Author(s) Ian Balitsky, Wayne Morris, Anatoly Radyushkin
Publication Date September 2020
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-19-3087 OSTI Number: 1644311
LANL Number: arXiv:1910.13963 Other Number: DOE/OR/23177-4803
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physics Letters B
Refereed Yes
Volume 808
Issue
Page(s) 135621
Attachments/Datasets/DOI Link
Document(s)
0Gluon1029.pdf (STI Document)
1-s2.0-S037026932030424X-main.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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