Journal of High Energy Physics
We formulate the basic points of the pseudo-PDF approach to the lattice calculation of polarized gluon PDFs. We present the results of our calculations of the one-loop corrections for the bilocal Gμα(z)G̃λβ(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 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.
Original Publication Citation
Balitsky, I., Morris, W., & Radyushkin, A. (2022). Polarized gluon pseudodistributions at short distances. Journal of High Energy Physics, 2022(2), 1-22, Article 193. https://doi.org/10.1007/JHEP02(2022)193
Balitsky, Ian; Morris, Wayne; and Radyushkin, Anatoly, "Polarized Gluon Pseudodistributions at Short Distances" (2022). Physics Faculty Publications. 572.