Axial form factor of the nucleon in the perturbative chiral quark model

Abstract

We apply the perturbative chiral quark model (PCQM) at one loop to analyze the axial form factor of the nucleon. This chiral quark model is based on an effective Lagrangian, where baryons are described by relativistic valence quarks and a perturbative cloud of Goldstone bosons as dictated by chiral symmetry. We apply the formalism to obtain analytical expressions for the axial form factor of the nucleon, which is given in terms of fundamental parameters of low-energy pion-nucleon physics (weak pion decay constant, strong pion-nucleon form factor) and of only one model parameter (radius of the nucleonic three-quark core).

23 pages, 5 figures, accepted for publication in J. Phys. G

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Cited by in corpus (15)

• Axial, induced pseudoscalar, and pion-nucleon form factors in manifestly Lorentz-invariant chiral perturbation theory
• Nucleon axial and pseudoscalar form factors from lattice QCD at the physical point
• The neutron electric dipole form factor in the perturbative chiral quark model
• Axial form factors of the octet baryons in a covariant quark model
• Axial form factor of the nucleon in the perturbative chiral quark model
• Nucleon polarizabilities in the perturbative chiral quark model
• Meson cloud contributions to baryon axial form factors
• Study of baryon octet electromagnetic form factors in perturbative chiral quark model
• Chiral corrections to the vector and axial couplings of quarks and baryons
• Dependence of nucleon properties on pseudoscalar meson masses
• Chiral Dynamics of Baryons in a Lorentz Covariant Quark Model
• Weak interaction axial form factors of the octet baryons in nuclear medium
• Analysis of excited quark propagator effects on neutron charge form factor
• Nucleon Properties from Approximating Chiral Quark Sigma Model
• Comparisons of electric charge and axial charge meson cloud distributions in the PCQM