Analysis of electromagnetic nucleon form factors

Höhler, G.; Pietarinen, E.; Sabba-Stefanescu, I.; Borkowski, F.; Simon, G.G.; Walther, Valentin; Wendling, R.D.

doi:10.1016/0550-3213(76)90449-1

Cited by 708 publications

(398 citation statements)

References 58 publications

Supporting

Mentioning

374

Contrasting

Order By: Relevance

“…4 are from Refs. [Iac73,Hoh76,Gar85], all three are based on a dispersion relation description of the FFs, and related to the vector meson dominance model (VMD). A compilation of all G Ep and G M p data obtained by the the Rosenbluth separation technique is shown in Figs.…”

Section: Rosenbluth Form Factor Separation Methodsmentioning

confidence: 99%

“…For the isoscalar spectral function, the integral starts at t 0 = 9m 2 π , corresponding to 3π intermediate states. The two-pion continuum contribution was estimated by Höhler and collaborators [Hoh76] by using pion time-like FF data and ππ → NN amplitudes which were determined by extrapolating πN partial waves to the time-like region [Hoh75].…”

Section: Dispersion Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Nucleon electromagnetic form factors

Perdrisat

Punjabi

Vanderhaeghen

2007

Progress in Particle and Nuclear Physics

458

581

View full text Add to dashboard Cite

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, MAMI, and JLab. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

show abstract

Section: Rosenbluth Form Factor Separation Methodsmentioning

confidence: 99%

Section: Dispersion Analysesmentioning

confidence: 99%

Nucleon electromagnetic form factors

Perdrisat

Punjabi

Vanderhaeghen

2007

Progress in Particle and Nuclear Physics

458

581

View full text Add to dashboard Cite

show abstract

“…Depending on the form of vector dominance (i.e., tensor or vector representation [35]), we obtain a limit on f v from the isoscalar anomalous moment of the nucleon or from the isoscalar magnetic radius of the nucleon. In either case, one finds the small value |f v | < ∼ 0.2 [20][21][22][23]. From Fig.…”

Section: Tensor Coupling and Spin-orbit Splittingmentioning

confidence: 99%

“…The existence of such a trade-off has been noted in previous studies of the isoscalar tensor coupling in QHD models, but good fits to nuclei were found only with relatively small values of the coupling and thus small M * 0 ≈ 0.6M [18,11]. Furthermore, this coupling is usually taken to be zero in one-boson-exchange potentials [19] or limited to small values due to constraints from free nucleon form factors and the assumption of vector meson dominance [20][21][22][23]. However, as an effective coupling in nuclei, which might absorb higher-order many-body effects at the mean-field level, the isoscalar tensor coupling could be much larger than these constraints dictate and still be of natural size.…”

Section: Introductionmentioning

confidence: 99%

The nuclear spin-orbit force in chiral effective field theories

1998

View full text Add to dashboard Cite

A compelling feature of relativistic mean-field phenomenology has been the reproduction of spin-orbit splittings in finite nuclei after fitting only to equilibrium properties of infinite nuclear matter. This successful result occurs when the velocity dependence of the equivalent central potential that leads to saturation arises primarily because of a reduced nucleon effective mass. The spin-orbit interaction is then also specified when one works in a fourcomponent Dirac framework. Here the nature of the spin-orbit force in more general chiral effective field theories of nuclei is examined, with an emphasis on the role of the tensor coupling of the isoscalar vector meson (ω) to the nucleon.

show abstract

“…The current of a spinless proton could be modeled by the widely used electric Sachs form factor G E [34]:…”

Section: Nucleon-nucleus Interactionmentioning

confidence: 99%

Coulomb corrections for quasielastic scattering: eikonal approximation

Aste¹,

Hencken²,

Jourdan³

et al. 2004

Nuclear Physics A

View full text Add to dashboard Cite

We address the problem of including Coulomb distortion effects in inclusive quasielastic (e, e ′ ) reactions using the eikonal approximation. Our results indicate that Coulomb corrections may become large for heavy nuclei for certain kinematical regions. The issues of our model are presented in detail and the results are compared to calculations of the Ohio group, where Dirac wave functions were used both for electrons and nucleons. Our results are in good agreement with those obtained by exact calculations.

show abstract

Analysis of electromagnetic nucleon form factors

Cited by 708 publications

References 58 publications

Nucleon electromagnetic form factors

Nucleon electromagnetic form factors

The nuclear spin-orbit force in chiral effective field theories

Coulomb corrections for quasielastic scattering: eikonal approximation

Contact Info

Product

Resources

About