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Nucleon structure functions from a chiral soliton

✍ Scribed by H. Weigel; L. Gamberg; H. Reinhardt; O. Schröder

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
400 KB
Volume
74
Category
Article
ISSN
0920-5632

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✦ Synopsis

We study nucleon structure functions within the bosonized version of the Nambu-Jona-Lasinio (NJL) model in which the nucleon emerges as the soliton in the chiral field. Upon boosting to the infinite momentum frame and performing the q2-evolution in the context of the Gottfried sum rule for electron nucleon scattering we determine the intrinsic scale p2 of the NJL chiral soliton. We also compute the leading twist contributions of the polarized structure functions g1 and 92. We compare these model predictions with experiment by evolving them from p2 to the scale where the data are taken. Analogously we analyze the chiral-odd structure functions hT and ht. Finally we generalize the treatment to flavor SU(3).

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