Springer Berlin Heidelberg
Berlin/Heidelberg
Springer
13130
10.1007/13130.1029-8479
1029-8479
32745009
Journal of High Energy Physics
J. High Energ. Phys.
Physics
Elementary Particles, Quantum Field Theory
Quantum Field Theories, String Theory
Classical and Quantum Gravitation, Relativity Theory
Quantum Physics
Physics and Astronomy
2022
2022
12
3
3
214
2022
6
23
2022
3
2022
The Author(s)
2022
17958
2111.12709
10.1007/JHEP03(2022)064
64
64
Pseudo and quasi gluon PDF in the BFKL approximation
Regular Article - Theoretical Physics
1
39
2022
3
9
2021
12
7
2022
2
9
2022
2
21
2022
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The Author(s)
2022
Open Access. This article is distributed under the terms of the Creative Commons Attribution License (
CC-BY 4.0
), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
13130
2022
2022
3
3
Giovanni
Antonio
Chirilli
giovanni.chirilli@ur.de
grid.7727.5
0000 0001 2190 5763
Institut für Theoretische Physik
Universität Regensburg
Universitätsstrasse 31
D-93040
Regensburg
Germany
Abstract
I study the behavior of the gauge-invariant gluon bi-local operator with space- like separation at large longitudinal distances. Performing the Fourier transform, I also calculate the behavior of the pseudo and quasi gluon PDF at low Bjorken x and compare it with the leading and next-to-leading twist approximation. I show that the pseudo-PDF and quasi-PDF are very different at this regime and that the higher twist corrections of the quasi-PDF come in not as inverse powers of P but as inverse powers of x
B
P.
Keywords
Resummation
Perturbative QCD
ArXiv ePrint:
2111.12709