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|Paper IPM / Physic / 7189||
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 F2p and F2π. The ambiguity in the normalization of F2π 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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