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Constituent Quarks and the Spin of the Proton

The constituent quarks are interpreted as bound states, which have an internal structure. The quark distributions of the proton are related to those of the constituent quarks. The experiments support this hypothesis. Likewise the spin structure of the proton is related to the spin structure of the constituent quarks. We find that about 30% of the spin of a constituent quark is given by the valence quark, and 70% are provided by the gluons.

preprint2009arXivOpen access
H. FritzschG. Eldahoumi
hep-ph
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Open access2 authors1 topic
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H. FritzschG. Eldahoumi

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