Is the Sullivan Process Compatible with QCD Chiral Dynamics?

Preprint

6 July 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0105197

Abstract

We calculate the leading non-analytic quark-mass dependence in the moments of isovector quark distributions using heavy-baryon chiral perturbation theory. The results differ from those obtained from the Sullivan process in which hard scattering occurs through the virtual pion cloud of the nucleon. Our results provide useful guidance for improving upon the meson-cloud model and can be used to constrain the extrapolations of the existing lattice QCD results to the physical quark masses.

Keywords

PERTURBATION THEORY
SULLIVAN PROCESS
CHIRAL DYNAMICS
LATTICE QCD
QCD CHIRAL
QUARK MASS

All Related Versions

Version 1, 2001-05-19, ArXiv
Version 2, 2001-07-06, ArXiv
Published version: Physics Letters B, 523 (1-2), 107.

This publication has 0 references indexed in Scilit: