Modelling quark distribution and fragmentation functions
高能物理 - 唯象学
2009-10-30 v1
摘要
The representation of quark distribution and fragmentation functions in terms of non-local operators is combined with a simple spectator model. This allows us to estimate these functions for the nucleon and the pion ensuring correct crossing and support properties. We give estimates for the unpolarized functions as well as for the polarized ones and for subleading (higher twist) functions. Furthermore we can study several relations that are consequences of Lorentz invariance and of C, P, and T invariance of the strong interactions.
关键词
引用
@article{arxiv.hep-ph/9704335,
title = {Modelling quark distribution and fragmentation functions},
author = {R. Jakob and P. J. Mulders and J. Rodrigues},
journal= {arXiv preprint arXiv:hep-ph/9704335},
year = {2009}
}
备注
27 pages, Revtex, 12 Postscript figures, uses epsfig.sty