Constituent Quark and Hadronic Structure in the Next-to-Leading Order

Details Constituent Quark and Hadronic Structure in the Next-to-Leading Order Constituent Quark and Hadronic Structure in the Next-to-Leading Order

2003-07-19

arxiv.org/abs/hep-ph/0307247v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages with 2 figures included. Contribution to Moriond 2003, QCD and High Energy Hadron Interactions, March 2003, Les Arcs 1

Scientific paper

The structure of a dressed quark is utilized to evaluate the structure function of proton and pion. It is found that there is a simple relationship between $F_{2}^{p}$ and $F_{2}^{\pi}$. The ambiguity in the normalization of $F_{2}^{\pi}$ is discussed. Furthermore, the polarization structure function of the constituent (dressed) quark is calculated in the leading order. While, it does produce all the available data on polarized hadronic structure, it requires a significant contribution to the proton spin from the orbital angular momentum.

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