Nucleon electromagnetic form factors in hidden local symmetry theory
نویسندگان
چکیده
منابع مشابه
Nucleon electromagnetic form factors
Elastic electromagnetic nucleon form factors have long provided vital information about the structure and composition of these most basic elements of nuclear physics. The form factors are a measurable and physical manifestation of the nature of the nucleons’ constituents and the dynamics that binds them together. Accurate form factor data obtained in recent years using modern experimental facil...
متن کاملNucleon Electromagnetic Form Factors
There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at MIT-Bates...
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A relativistic interpretation for why the proton’s GE/GM falls and QF2/F1 is approximately constant is presented. Reproducing the observed GE mandates the inclusion of the effects of the pion cloud. The full relativistic model with a pion cloud provides a good reproduction of all of the nucleon electromagnetic form factors.
متن کاملOn Nucleon Electromagnetic Form Factors
A Poincaré covariant Faddeev equation, which describes baryons as composites of confined-quarks and -nonpointlike-diquarks, is solved to obtain masses and Faddeev amplitudes for the nucleon and ∆. The amplitudes are a component of a nucleon-photon vertex that automatically fulfills the Ward-Takahashi identity for on-shell nucleons. These elements are sufficient for the calculation of a quark co...
متن کاملElectromagnetic Form Factors of the Nucleon
Elastic form factors provide information about the low energy structure of composite particles. Recent double polarization coincidence experiments significantly improved our knowledge of proton and neutron form factors. Recoil polarization measurements in the p(~e, e~ p) reaction proved that at momentum transfers above Q ≃ 1.5 (GeV/c) the electric form factor of the proton falls significantly f...
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ژورنال
عنوان ژورنال: Il Nuovo Cimento A
سال: 1996
ISSN: 0369-3546,1826-9869
DOI: 10.1007/bf02734426