Journal
PHYSICS LETTERS B
Volume 621, Issue 3-4, Pages 246-252Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2005.06.065
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Spin-dependent and spin-independent quark light-cone momentum distributions and structure functions are calculated for the nucleon. We utilize a modified Nambu-Jona-Lasinio model in which confinement is simulated by eliminating unphysical thresholds for nucleon decay into quarks. The nucleon bound state is obtained by solving the Faddeev equation in the quark-diquark approximation, where both scalar and axial-vector diquark channels are included. We find excellent agreement between our model results and empirical data. (c) 2005 Elsevier B.V. All rights reserved.
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