Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-06-30
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages
Scientific paper
We investigate the spin structure of the nucleon in an extended Jaffe-Lipkin quark model. In addition to the conventional $3q$ structure, different $(3q)(Q\bar{Q})$ admixtures in the nucleon wavefunction are also taken into account. The contributions to the nucleon spin from various components of the nucleon wavefunction are discussed. The effect due to the Melosh-Wigner rotation is also studied.
Ma Bo-Qiang
Schmidt Ivan
Yang Jian-Jun
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