1997/07/31 by M. Wakamatsu, Masashi Wakamatsu, T. Kubota +1 · 3 citations
Physics and Astronomy · #Asymmetry #Chiral symmetry breaking #Constituent quark #Deep inelastic scattering #Down quark #Geometry #High-Energy Particle Collisions Research #Inelastic scattering #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Quark model #Scattering #Symmetry (geometry) #Up quark #hep-ph
paper · pdf · doi:10.1103/physrevd.57.5755
published as Phys.Rev. D57 (1998) 5755-5766 · 20pages, LaTex, 5 Postscript figures A numerical error of the original version was corrected. The discussion on the regularization dependence of distribution functions has been added. A comparison with the low energy-scale parametrization of Gloeck, Reya and Vogt has been made
arxiv created 1997/11/14 · openalex publication_date 1998/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The flavor asymmetry of the sea quark distribution as well as the unexpectedly small quark spin fraction of the nucleon are two outstanding discoveries recently made in the physics of deep-inelastic structure functions. We evaluate here the corresponding quark distribution functions within the framework of the chiral quark soliton model, which is an effective quark model of baryons maximally incorporating the most important feature of low-energy QCD, i.e., chiral symmetry and its spontaneous breakdown. It is shown that the model can explain qualitative features of the abovementioned nucleon structure functions within a single framework, thereby disclosing the importance of chiral symmetry in the physics of high-energy deep-inelastic scattering.