TITLE

A Model Prediction for Polarized Antiquark Flavor Asymmetry

AUTHOR(S)
Kumano, S.
PUB. DATE
March 2003
SOURCE
International Journal of Modern Physics A: Particles & Fields; G;Mar2003, Vol. 18 Issue 8, p1457
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Polarized flavor asymmetry Δ&usline;/Δ&dsline; is investigated in a meson-cloud model. A polarized nucleon splits into a ρ meson and a baryon, then the polarized ρ meson interacts with the virtual photon. Because of the difference between the longitudinally polarized distributions Δ&usline; and Δ&dsline; in ρ, the polarized flavor asymmetry is produced in the nucleon. In addition, we show that the g2 part of ρ contributes to the asymmetry especially at medium x with small Q[SUP2].
ACCESSION #
9636990

 

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