Analysis of excited quark propagator effects on neutron charge form factor

Abstract

The charge form factor and charge radius of neutron are investigated in the perturbative chiral quark model (PCQM) with considering both the ground and excited states in the quark propagator. A Cornell-like potential is extracted in accordance with the predetermined ground state quark wavefunction, and the excited quark states are derived by solving the Dirac equation with the extracted PCQM potential numerically. The study reveals that the contributions of the excited quark states are considerably influential in the charge form factor and charge radius of neutron as expected, and the total results are significantly improved and increased by nearly four times by including the excited states in the quark propagator. The theoretical PCQM results are found, including the ground and excited quark propagators, in good agreement with the recent lattice QCD values at pion mass of about 130 MeV.

arXiv comment8 pages, 8 figures

References in corpus (35)

• The Charge Form Factor of the Neutron from the Reaction \pol{2H}(\pol{e},e'n)p
• Measurements of GEn/GMn from the ^2H(vec{e},e'vec{n})^1H Reaction to Q^2=1.45 (GeV/c)^2
• Measurement of the Electric Form Factor of the Neutron at Q^2=0.5 and 1.0 (GeV/c)^2
• Measurement of the Electric Form Factor of the Neutron at Q^2 = 0.3-0.8 (GeV/c)^2
• Extraction of electromagnetic neutron form factors through inclusive and exclusive polarized electron scattering on polarized 3He target
• The neutron charge form factor and target analyzing powers from pol.3He(pol e,e'n)-scattering
• Proton and neutron electromagnetic form factors from lattice QCD
• Electromagnetic Form Factors of the Nucleon in an Improved Quark Model
• Sigma-term physics in the perturbative chiral quark model
• The Charge Form Factor of the Neutron at Low Momentum Transfer from the ${}^2\vec{\mathrm{H}}(\vec{\mathrm{e}},{\mathrm{e}}^{\prime }\mathrm{n})\mathrm{p}$ Reaction
• Electromagnetic form factors of the nucleon in chiral perturbation theory including vector mesons
• Electromagnetic form factors of the nucleon in relativistic baryon chiral perturbation theory
• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach
• Semileptonic decays of the light J(P)=1/2(+) ground state baryon octet
• Electromagnetic Structure of the Nucleon in the Perturbative Chiral Quark Model
• Nucleon electromagnetic form factors using lattice simulations at the physical point
• Octet baryon electromagnetic form factors in nuclear medium
• Chiral extrapolation of octet-baryon charge radii
• piN scattering and electromagnetic corrections in the perturbative chiral quark model
• Octet baryon electromagnetic form factors in a relativistic quark model
• Electromagnetic form factors of the baryon octet in the perturbative chiral quark model
• Electromagnetic couplings of the ChPT Lagrangian from the perturbative chiral quark model
• The neutron electric dipole form factor in the perturbative chiral quark model
• The neutron charge form factor in helium-3
• Axial form factor of the nucleon in the perturbative chiral quark model
• Electromagnetic nucleon-delta transition in the perturbative chiral quark model
• Nucleon polarizabilities in the perturbative chiral quark model
• Relativistic effects on the neutron charge form factor in the constituent quark model
• Meson cloud contributions to baryon axial form factors
• Pionic Fluctuations of Constituent Quarks
• Study of baryon octet electromagnetic form factors in perturbative chiral quark model
• Lattice Results on the Connected Neutron Charge Radius
• Neutron Charge Density from Simple Pion Cloud Models
• Dependence of nucleon properties on pseudoscalar meson masses
• Spectrum of the excited $N^{\ast }$ and ${\Delta }^{\ast }$ baryons in a relativistic chiral quark model

Cited by in corpus (1)

• Axial transition form factors of octet baryons in the perturbative chiral quark model