Strangeness Contribution to the Polarized Nucleon Structure Function $g_1(x)$

Abstract

The three flavor version of the Nambu-Jona-Lasinio chiral soliton model for baryons is employed to calculate the twist-2 contribution to the polarized nucleon structure function $g_1(x)$. In particular the role of the strange quark degree of freedom as a collective excitation of the chiral soliton is investigated in the context of flavor symmetry breaking. The model prediction for $g_1(x)$ refers to a low momentum scale $Q_0^2$. The leading order corrections to the scale dependence is computed along the QCD evolution program allowing to compare with data from SLAC.

12 pages, 5 ps-files included via epsfig

References in corpus (3)

• Unpolarized and polarized quark distributions in the large-Nc limit
• Chiral Symmetry and the Nucleon Structure Functions
• Chiral Odd Structure Functions from a Chiral Soliton

Cited by in corpus (6)

• Measurement of Parton Distributions of Strange Quarks in the Nucleon from Charged-Kaon Production in Deep-Inelastic Scattering on the Deuteron
• Light-flavor sea-quark distributions in the nucleon in the SU(3) chiral quark soliton model (I) -- phenomenological predictions --
• Hadron Structure Functions in a Chiral Quark Model: Regularization, Scaling and Sum Rules
• Nucleon Structure Functions in the Three Flavor NJL Soliton Model
• Nucleon Structure Functions in a Chiral Soliton Model
• Hadron Structure Functions in a Chiral Quark Model