Gluonic Pole Matrix Elements in Spectator Models
High Energy Physics - Phenomenology
2017-08-23 v1
Abstract
We investigate the gluonic pole matrix element contributing to the first moment of the distribution and fragmentation functions in a spectator model. By performing a spectral analysis, we find that for a large class of spectator models, the contribution of gluonic pole matrix elements is non-zero for the distribution correlators, whereas in fragmentation correlators they vanish. This outcome is important in the study of universality for fragmentation functions.
Cite
@article{arxiv.0808.2374,
title = {Gluonic Pole Matrix Elements in Spectator Models},
author = {A. Mukherjee and L. Gamberg and P. J. Mulders},
journal= {arXiv preprint arXiv:0808.2374},
year = {2017}
}
Comments
Talk given by A. Mukherjee at Transversity 2008, Ferrara, Italy