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Paper   IPM / Physic / 6933
School of Physics
  Title:   Spin Structure of Constituent Quark and Polarized Structure of Hadrons
1.  F. Arash
2.  S. Atashbar-Tehrani
3.  Ali N. Khorramian
  Status:   Published
  Journal: Czech. J. Phys.
  Vol.:  53
  Year:  2003
  Pages:   B71-B76
  Supported by:  IPM
Polarized parton distribution inside a constituent quark is calculated. This structure is universal for all hadrons and the polarized structure of any hadron is a convolution of polarized constituent quark distribution in the hadron with the polarized structure function of the constituent quark. This approach gives very good agreement with the experimental data on polarized proton, neutron, and deuteron, However, in order to assemble the components to build the spin the constituent quark we are forced to include a sizeable orbital angular momentum.

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