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Flavor content of the nucleon in an unquenched quark model
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Flavor content of the nucleon in an unquenched quark model
classification
nucl-th
keywords
contentflavormodelnucleonpairsprotonquarkquark-antiquark
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We discuss the flavor content of the nucleon in an unquenched quark model in which the effects of quark-antiquark pairs (up, down and strange) are taken into account in an explicit form. It is shown that the inclusion of quark-antiquark pairs leads to an excess of anti-d over anti-u quarks in the proton and to a large contribution of orbital angular momentum to the spin of the proton.
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