Pseudo and quasi quark PDF in the BFKL approximation

Giovanni Chirilli (Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain)

I examine the high-energy behavior of the Ioffe-time distribution for the quark bi-local space-like separated operator using the high-energy operator product expansion. These findings have significant implications for lattice calculations, which require extrapolation for large Ioffe-time values. I perform an explicit Fourier transform for both the pseudo-PDF and quasi-PDF, and investigate their behavior within the first two leading twist contributions.

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Published on:
07 July 2023
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2023 (2023)
Issue 7
Pages 1-40
DOI:
https://doi.org/10.1007/JHEP07(2023)068
arXiv:
2305.02270
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: