%0 Journal Article
%T Impact parameter dependence of parton densities at low x
%A S. M. Troshin
%A N. E. Tyurin
%J Physics
%D 2000
%I arXiv
%R 10.1016/S0920-5632(01)01307-X
%X We consider impact parameter dependence of the polarized and unpolarized parton densities. Unitarity does not allow factorization of these structure functions over the Bjorken x and the impact parameter b variables. On the basis of the particular geometrical model approach we conclude that spin of constituent quark may have a significant orbital angular momentum component which can manifest itself through the peripherality of the spin dependent structure functions.
%U http://arxiv.org/abs/hep-ph/0010235v3