Parton distribution function for quarks in an s-channel approach

Abstract

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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• Scattering of Dark Particles with Light Mediators
• PDF bias and flavor dependence in TMD distributions
• Forward Jets and Energy Flow in Hadronic Collisions
• Non-perturbative contributions to vector-boson transverse momentum spectra in hadronic collisions
• Lattice QCD evaluation of the Compton amplitude employing the Feynman-Hellmann theorem
• T-odd Leading-Twist Quark TMDs at Small $x$
• Next-to-Leading Order Hard Scattering Using Fully Unintegrated Parton Distribution Functions
• QCD rescattering mechanism for diffractive deep inelastic scattering
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• MSbar quark distribution and dipole scattering matrix elements at high energy
• Parton correlation functions and factorization in deep inelastic scattering
• Dynamic colour screening in diffractive deep inelastic scattering
• Collinear and TMD distributions with dynamical soft-gluon resolution scale