Nucleon Structure Functions from the NJL-Model Chiral Soliton

Abstract

We present numerical simulations for unpolarized and polarized structure functions in a chiral soliton model. The soliton is constructed self-consistently from quark fields from which the structure functions are extracted. Central to the project is the implementation of regularizing the Dirac sea (or vacuum) contribution to structure functions from first principles. We discuss in detail how sum rules are realized at the level of the quark wave-functions in momentum space. The comparison with experimental data is convincing for the polarized structure functions but exhibits some discrepancies in the unpolarized case. The vacuum contribution to the polarized structure functions is particularly small.

arXiv comment23 pages, 11 figures

References in corpus (28)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Parton Physics on Euclidean Lattice
• Dyson-Schwinger equations: a tool for hadron physics
• The Spin Structure of the Nucleon
• Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
• Baryons as non-topological chiral solitons
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• Nucleon Parton Distributions at Low Normalization Point in the Large N_c Limit
• Baryons as Chiral Solitons in the Nambu--Jona-Lasinio Model
• Unpolarized and polarized quark distributions in the large-Nc limit
• Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2
• Updated Lattice Results for Parton Distributions
• Chiral Symmetry and the Nucleon Spin Structure Functions
• Isovector unpolarized quark distribution in the nucleon in the large-N_c limit
• On the Q^2 Dependence of Measured Polarized Structure Funtions
• $1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon
• Polarized Nucleon Structure Functions within a Chiral Soliton Model
• Chiral Symmetry and the Nucleon Structure Functions
• Hadron Structure Functions in a Chiral Quark Model: Regularization, Scaling and Sum Rules
• Light-flavor sea-quark distributions in the nucleon in the SU(3) chiral quark soliton model (I) -- phenomenological predictions --
• Nonperturbative partonic quasidistributions of the pion from chiral quark models
• Nucleon Structure Functions from a Chiral Soliton
• Quasi-parton distribution functions: a study in the diquark spectator model
• Measurements of $d_2^n$ and $A_1^n$: Probing the neutron spin structure
• Light-flavor sea-quark distributions in the nucleon in the SU(3) chiral quark soliton model (II) -- theoretical formalism --
• $1/N_C$ Corrections to $g_A$ in the Light of PCAC$
• Nucleon Structure Functions from a Chiral Soliton in the Infinite Momentum Frame
• Nucleon Structure Functions in a Chiral Soliton Model

Cited by in corpus (3)

• TMD Relations: Insights from a Light-Front Quark-Diquark Model
• Chiral Soliton Models and Nucleon Structure Functions
• Chiral Solitons