Precision measurement of the neutron magnetic form factor

Anklin, H.; Bruins, E. E. W.; Day, D.; Fritschi, D.; Groft, B.; Joosse, F.C.P.; Jourdan, J.; Lichtenstadt, J.; Loppacher, M.; Masson, G.; Mitchell, J.; Sick, I.; Veen, H.J.J. van

doi:10.1016/0370-2693(94)90538-x

Cited by 137 publications

(105 citation statements)

References 46 publications

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“…The resulting values for G n M extracted in [142] are shown in Fig. 35 together with the values extracted from the deuteron [144,145]. The agreement between the two totally independent approaches is very good, though one should keep the above remarks in mind.…”

Section: Comparison With Datamentioning

confidence: 87%

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Electron and photon scattering on three-nucleon bound states

et al. 2005

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A big spectrum of processes induced by real and virtual photons on the 3 He and 3 H nuclei is theoretically investigated through many examples based on nonrelativistic Faddeev calculations for bound and continuum states. The modern nucleon-nucleon potential AV18 together with the threenucleon force UrbanaIX is used. The single nucleon current is augmented by explicit π-and ρ-like two-body currents which fulfill the current continuity equation together with the corresponding parts of the AV18 potential. We also employ the Siegert theorem, which induces many-body contributions to the current operator. The interplay of these different dynamical ingredients in the various electromagnetic processes is studied and the theory is compared to the experimental data.Overall we find fair to good agreement but also cases of strong disagreement between theory and experiment, which calls for improved dynamics. In several cases we refer the reader to the work of other groups and compare their results with ours. In addition we list a number of predictions for observables in different processes which would challenge this dynamical scenario even more stringently and systematically.

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Section: Comparison With Datamentioning

confidence: 87%

“…In rewriting (144) in terms of N ±1 and N 0 only the kinematical relation (135) is used. Further it is convenient to choose the plane spanned by k and k ′ to coincide with the x − z plane and to choose the…”

Section: The Observablesmentioning

confidence: 99%

Electron and photon scattering on three-nucleon bound states

et al. 2005

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“…The first contains values of proton magnetic form factor data tabulated in [77]. The second contains the proton data and the neutron magnetic form factor data tabulated in [78,79,80,81,82,83,84]. The third contains the proton and neutron data and the two-pion continuum data constructed from pion form factor data and a ππ → NN partial amplitude using (14).…”

Section: Discussionmentioning

confidence: 99%

Model independent extraction of the proton magnetic radius from electron scattering

2014

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We combine constraints from analyticity with experimental electron-proton scattering data to determine the proton magnetic radius without model-dependent assumptions on the shape of the form factor. We also study the impact of including electron-neutron scattering data, and ππ → NN data. Using representative datasets we find for a cut of Q 2 ≤ 0.5 GeV 2 , r p M = 0.91 +0.03 −0.06 ± 0.02 fm using just proton scattering data; r p M = 0.87 +0.04 −0.05 ± 0.01 fm adding neutron data; and r p M = 0.87 +0.02 −0.02 fm adding ππ data. We also extract the neutron magnetic radius from these data sets obtaining r n M = 0.89 +0.03 −0.03 fm from the combined proton, neutron, and ππ data.

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“…10 all G M n data obtained from cross section measurements are displayed, including the SLAC experiments [Roc92,Lun93], which measured inclusive quasi-elastic ed cross sections. The more recent ELSA [Bru95] and MAMI [Ank94,Ank98,Kub02] experiments are simultaneous measurements of the cross section for quasi elastic scattering on the neutron and proton in the deuteron, d(e, e ′ n)p and d(e, e ′ p)n; the systematics is then dominated by the uncertainty in the neutron detector efficiency; much attention was given to that calibration in these experiments. In the ELSA experiment [Bru95] protons and neutrons were detected in the same scintillator, and the neutron efficiency was determined in situ with the neutrons from 1 H(γ, π).…”

Section: Neutron Magnetic Form Factor Measurementsmentioning

confidence: 99%

Nucleon electromagnetic form factors

Perdrisat

Punjabi

Vanderhaeghen

2007

Progress in Particle and Nuclear Physics

471

583

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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.

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Precision measurement of the neutron magnetic form factor

Cited by 137 publications

References 46 publications

Electron and photon scattering on three-nucleon bound states

Electron and photon scattering on three-nucleon bound states

Model independent extraction of the proton magnetic radius from electron scattering

Nucleon electromagnetic form factors

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