Open AccessPerturbative Gluon Exchange in a Covariant Quark Model of the Pion
Author(s) -
Franz Gross,
Hiroshi Itô
Publication year - 1990
Language(s) - English
Resource type - Reports
DOI - 10.2172/954151
Subject(s) - covariant transformation , physics , pion , particle physics , gluon , quark , form factor (electronics) , wave function , quantum electrodynamics , nuclear physics , mathematical physics , quantum mechanics
A covariant pion wave function, which reproduces the low energy data, is used to calculate the perturbative gluon exchange contributions to the pion charge form factor. It is found that the perturbative process dominates at q > 3.5 GeV/c. The dependence on the quark mass and the asymptotic behavior of the form factor are explicitly displayed