High Energy Physics - Phenomenology
[Submitted on 2 Oct 2005]
Title:Hadronic Structure from Perturbative dressing in QCD - The Valon Model
View PDFAbstract: In the Framework of {\it{valon model}} we have calculated the parton distribution in a valon for both the polarized and unpolarized cases. These distributions are originated purely from the dressing of a valence quark in QCD and are common to all hadrons. Structure functions, $F_{2}^{p,\pi}$, are obtained, which agree rather well with the experimental results. A simple relation between $F_{2}^{p}$ and $F_{2}^{\pi}$ is inferred. For the polarized structure function, $g_{1}$ while the model gives good agreement with data, it requires a sizable angular momentum contribution to the spin of the valon, and hence to that of proton. This contribution is calculated.
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