Contributions to the nucleon form factors from bubble and tadpole diagrams

Abstract

The nonlocal chiral effective theory is applied to investigate the electromagnetic and strange form factors of nucleon. The bubble and tadpole diagrams are included in the calculation. With the contributions from bubble and tadpole diagrams, the obtained electromagnetic form factors are close to the results without these contributions as long as the low energy constants $c_1$ and $c_2$ are properly chosen, while the magnitudes of strange form factors become larger. Both the electromagnetic and strange form factors are still in good agreement with the experimental data.

arXiv comment11 pages,7 figures

References in corpus (36)

• The electric and magnetic form factors of the proton
• Electromagnetic excitation of the Delta(1232)-resonance
• Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment
• Low energy analysis of the nucleon electromagnetic form factors
• The Strange Quark Contribution to the Proton's Magnetic Moment
• Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2
• Hadron Properties and Dyson-Schwinger Equations
• Evidence for Strange Quark Contributions to the Nucleon's Form Factors at $Q^2$ = 0.108 (GeV/c)${}^2$
• Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Baryon form factors in chiral perturbation theory
• Measurement of Strange Quark Contributions to the Vector Form Factors of the Proton at Q**2=0.22 (GeV/c)**2
• Pion and sigma meson properties in a relativistic quark model
• A Precise Measurement of the Neutron Magnetic Form Factor GMn in the Few-GeV2 Region
• Electromagnetic Form Factors of the Nucleon in an Improved Quark Model
• N-N Interactions in the Extended Chiral SU(3) Quark Model
• Strange nucleon form factors in the perturbative chiral quark model
• Electromagnetic form factors of the nucleon in relativistic baryon chiral perturbation theory
• On the strange vector form factors of the nucleon in the NJL soliton model
• Nucleon Electromagnetic Form Factors in the Continuum Limit from 2+1+1-flavor Lattice QCD
• The hbar Expansion in Quantum Field Theory
• Covariant nucleon wave function with S, D, and P-state components
• The gamma(*) pi(0) -> gamma form factor
• Parton distributions from nonlocal chiral SU(3) effective theory. I. Splitting functions
• Baryon Octet Electromagnetic Form Factors in a confining NJL model
• Strange magnetic form factor of nucleon in heavy baryon chiral effective approach at next to leading order
• Sea Quarks Contribution to the Nucleon Magnetic Moment and Charge Radius at the Physical Point
• Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
• Nucleon electromagnetic form factors with non-local chiral effective Lagrangian
• Chiral extrapolation of nucleon magnetic moments at next-to-leading-order
• Polynomiality of helicity off-forward distribution functions in the chiral quark-soliton model
• Strange form factors of nucleon with nonlocal chiral effective Lagrangian
• Electromagnetic form factors of octet baryons with the nonlocal chiral effective theory
• Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory
• Flavor content of nucleon form factors in a VMD approach
• Nucleon Form Factors in a Light-Cone Quark Model with Two-Photon Exchange
• Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory