Factorization and transverse phase-space parton distributions

• Published in: The journal of high energy physics Vol. 2021; no. 7; pp. 1 - 29
• Main Author: Wu, Bin
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2021; Springer Nature B.V; SpringerOpen
• Subjects: Atomic collisions; Classical and Quantum Gravitation; Cross-sections; Distribution functions; Effective Field Theories; Elementary Particles; Factorization; Field theory; Fourier transforms; Heavy ions; High energy physics; Ionic collisions; Mathematical models; Parameters; Particle collisions; Partons; Perturbative QCD; Physics; Physics and Astronomy; Protons; Quantum chromodynamics; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quantum theory; Regular Article - Theoretical Physics; Relativistic particles; Relativity Theory; String Theory; Thickness; Effective Field Theories; Perturbative QCD

A bstract We first revisit impact-parameter dependent collisions of ultra-relativistic particles in quantum field theory. Two conditions sufficient for defining an impact-parameter dependent cross section are given, which could be violated in proton-proton collisions. By imposing these conditions, a...