Generalized parton distribution function(Eu+Ed)(x,ξ,t)of the nucleon in the chiral quark soliton model

2004/11/30 by J. Ossmann, M. V. Polyakov, Maxim V. Polyakov +4 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.71.034011

published as Phys.Rev.D71:034011,2005 · 20 pages, 12 figures

openalex publication_date 2005/02/14 · arxiv created 2005/02/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The unpolarized spin-flip isoscalar generalized parton distribution function (E^u+E^d)(x,\ensuremathξ,t) is studied in the large-N_c limit at a low normalization point in the framework of the chiral quark-soliton model. This is the first study of generalized parton distribution functions in this model, which appear only at the subleading order in the large-N_c limit. Particular emphasis is put therefore on the demonstration of the theoretical consistency of the approach. The forward limit of (E^u+E^d)(x,\ensuremathξ,t) of which only the first moment--the anomalous isoscalar magnetic moment of the nucleon--is known phenomenologically, is computed numerically. Observables sensitive to (E^u+E^d)(x,\ensuremathξ,t) are discussed.

Citations

• Helicity-dependent generalized parton distributions in constituent quark models
• Nucleon parton distributions at low normalization point in the large Nc limit
• Off-forward matrix elements in light-front Hamiltonian QCD

Cited by

• Pion mass dependence of the nucleon form factors of the energy-momentum tensor in the chiral quark-soliton model