Abstract
Using Sullivan processes with , , and vertices, we describe how the sea-quark distributions of a pion may be generated in a quantitative manner. The input valence-quark distributions are obtained using the leading Fock component of the light-cone wave function, which is in accord with results obtained from the QCD sum rules. The sample numerical results appear to be reasonable as far as the existing Drell-Yan production data are concerned, although the distributions as a function of differs slightly from those obtained by imposing counting rules for and . Our results lend additional support toward the conjecture of Hwang, Speth, and Brown that the sea distributions of a hadron, at low and moderate at least up to a few ), may be attributed primarily to generalized Sullivan processes.
- Received 4 April 1991
DOI:https://doi.org/10.1103/PhysRevD.45.3061
©1992 American Physical Society