科研之友
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摘要
We study the deep inelastic structure functions of mesons within the Nambu and Jona-Lasinio model. We calculate the valence-quark distributions in pi-, K- and rho-mesons at the low-energy model scale, which are evoluted to the experimental momentum scale in terms of the Altarelli-Parisi equation. The resulting distribution functions show reasonable agreements with experiment. We also discuss the semi-inclusive lepton-nucleon scattering process with a slow nucleon in coincidence in the final state, which reveals the off-shell structure of the pion.
- 出版日期1994-10-24
