Impact parameter dependence of parton densities at low x

Details Impact parameter dependence of parton densities at low x Impact parameter dependence of parton densities at low x

2000-10-20

arxiv.org/abs/hep-ph/0010235v3

Nucl.Phys.Proc.Suppl. 99A (2001) 56-59

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, to appear in the Proceedings of the Workshop Diffraction 2000, Cetraro, Italy, 2-7 September 2000

Scientific paper

10.1016/S0920-5632(01)01307-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.

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