Model Calculation of Nucleon Structure Functions

Details Model Calculation of Nucleon Structure Functions Model Calculation of Nucleon Structure Functions

1994-01-31

arxiv.org/abs/hep-ph/9401356v1

Phys.Rev.D49:3169,1994; Erratum-ibid.D50:4718,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

39 pages, 24 figures available on request

Scientific paper

10.1103/PhysRevD.49.3169 10.1103

Deep inelastic polarized and unpolarized structure functions for a free nucleon are obtained in a modified Center-of-Mass bag model, which includes the symmetry breaking effects from spin-dependent interactions. The quark distribution functions, calculated at $Q_0^2\simeq$ (0.9GeV/c)$^2$, are evolved to higher $Q^2$ region and compared with the data and other models. The model gives a reasonable description for the valence part of the structure functions at $x>0.3$. For small-$x$ region, the contributions from the sea are necessary. The spin-dependent effects are important in describing the existing data.

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