Parton distribution function for quarks in an s-channel approach

Details Parton distribution function for quarks in an s-channel approach Parton distribution function for quarks in an s-channel approach

2007-02-07

arxiv.org/abs/hep-ph/0702077v1

Phys.Rev.D75:074020,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.75.074020

We use an s-channel picture of hard hadronic collisions to investigate the parton distribution function for quarks at small momentum fraction x, which corresponds to very high energy scattering. We study the renormalized quark distribution at one loop in this approach. In the high-energy picture, the quark distribution function is expressed in terms of a Wilson-line correlator that represents the cross section for a color dipole to scatter from the proton. We model this Wilson-line correlator in a saturation model. We relate this representation of the quark distribution function to the corresponding representation of the structure function F_T(x,Q^2) for deeply inelastic scattering.

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