Universality of TMD distribution functions of definite rank
High Energy Physics - Phenomenology
2022-03-02 v1
Abstract
Transverse momentum dependent (TMD) distribution and fragmentation functions are described as Fourier transforms of matrix elementscontaining nonlocal combinations of quark and gluon fields. These matrix elements also contain a gauge link operator with a process dependent path, of which the process dependence that can be traced back to the color flow in the process. Expanding into irreducible tensors built from the transverse momenta , we can define a universal set of TMD correlators of definite rank with a well-defined operator structure.
Keywords
Cite
@article{arxiv.1304.0944,
title = {Universality of TMD distribution functions of definite rank},
author = {P. J. Mulders and M. G. A. Buffing and A. Mukherjee},
journal= {arXiv preprint arXiv:1304.0944},
year = {2022}
}
Comments
6 pages, to be published in proceedings of the Third Worshop on the QCD Structure of the Nucleon (QCD N'12), Bilbao, Spain, 22-26 October 2012