Parallel Session B3 – Chair: Y. X. LiuNo Access

QUARK DISTRIBUTIONS AND NUCLEON SPIN STRUCTURE

ALI N. KHORRAMIAN

Physics Department, Semnan University, Semnan, Iran

Institute for Studies in Theoretical Physics and Mathematics (IPM), P.O. Box 19395-5531, Tehran, Iran

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A. MIRJALILI

Physics Department, Yazd University, Yazd, Iran

Institute for Studies in Theoretical Physics and Mathematics (IPM), P.O. Box 19395-5531, Tehran, Iran

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, and

S. ATASHBAR TEHRANI

Physics Department, Persian Gulf University, Boushehr, Iran

Institute for Studies in Theoretical Physics and Mathematics (IPM), P.O. Box 19395-5531, Tehran, Iran

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https://doi.org/10.1142/S0217751X05023645Cited by:6 (Source: Crossref)

Abstract

In this paper we calculate spin dependence of parton distributions and proton structure function. The polarized valon distributions in a proton and the polarized parton distributions inside the valon are necessary to obtain the polarized parton distributions in a proton. The results of our calculations for the proton structure function, are in good agreement with the available experimental data. We obtain the spin contribution and angular momentum of the valons to the proton.

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