Need for fully unintegrated parton densities
John Collins (Physics Department, Penn State University, USA), Hannes, Jung (DESY, Hamburg, FRG)
TL;DR
This paper emphasizes the importance of reformulating perturbative QCD using fully unintegrated parton densities to avoid unphysical distributions caused by conventional approximations.
Contribution
It advocates for a new formulation of perturbative QCD with fully unintegrated parton densities, providing a more accurate description of parton momenta.
Findings
Conventional integrated densities lead to unphysical distributions.
Fully unintegrated densities offer a more precise framework.
Reformulation improves the physical consistency of QCD predictions.
Abstract
Associated with the use of conventional integrated parton densities are kinematic approximations on parton momenta which result in unphysical differential distributions for final-state particles. We argue that it is important to reformulate perturbative QCD results in terms of fully unintegrated parton densities, differential in all components of the parton momentum.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research