We introduce a generalized definition of parton distribution functions (PDFs) for a more consistent all-order treatment of power corrections. We present a new set of modified DGLAP evolution equations for nuclear PDFs, and show that the resummed αsA1/3/Q2-type of leading nuclear size enhanced power corrections significantly slow down the growth of gluon density at small-x. We discuss the relation between the calculated power corrections and the saturation phenomena.
@article{arxiv.hep-ph/0702040,
title = {Nuclear Modification to Parton Distribution Functions and Parton Saturation},
author = {Zhong-Bo Kang and Jian-Wei Qiu},
journal= {arXiv preprint arXiv:hep-ph/0702040},
year = {2008}
}