Nucleon structure functions from a chiral soliton

H. Weigel, Leonard Gamberg, H. Reinhardt, O. Schröder

Research output: Contribution to journalArticle

Abstract

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 μ2 of the NJL chiral soliton. We also compute the leading twist contributions of the polarized structure functions g1 and g2. We compare these model predictions with experiment by evolving them from μ2 to the scale where the data are taken. Analogously we analyze the chiral-odd structure functions hT and hL. Finally we generalize the treatment to flavor SU(3).

Original languageEnglish (US)
Pages (from-to)125-128
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Volume74
Issue number1-3
DOIs
StatePublished - Jan 1 1999

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solitary waves
sum rules
momentum
predictions
scattering
electrons

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

Cite this

Weigel, H. ; Gamberg, Leonard ; Reinhardt, H. ; Schröder, O. / Nucleon structure functions from a chiral soliton. In: Nuclear Physics B - Proceedings Supplements. 1999 ; Vol. 74, No. 1-3. pp. 125-128.
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Nucleon structure functions from a chiral soliton. / Weigel, H.; Gamberg, Leonard; Reinhardt, H.; Schröder, O.

In: Nuclear Physics B - Proceedings Supplements, Vol. 74, No. 1-3, 01.01.1999, p. 125-128.

Research output: Contribution to journalArticle

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T1 - Nucleon structure functions from a chiral soliton

AU - Weigel, H.

AU - Gamberg, Leonard

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AU - Schröder, O.

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AB - 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 μ2 of the NJL chiral soliton. We also compute the leading twist contributions of the polarized structure functions g1 and g2. We compare these model predictions with experiment by evolving them from μ2 to the scale where the data are taken. Analogously we analyze the chiral-odd structure functions hT and hL. Finally we generalize the treatment to flavor SU(3).

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