Electric form factor of the neutron from the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>2</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>(<i>e</i>→,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">e</mml:mi></mml:mrow><mm

Eden, T.; Madey, R.; Zhang, W; Bd, Anderson; Arenhövel, H.; Ar, Baldwin; Barkhuff, D.; Kb, Beard; Bertozzi, W.; Jm, Cameron; Cc, Chang; Gw, Dodson; Dow, K.; Farkhondeh, M.; Jm, Finn; Bs, Flanders; Hyde‐Wright, C. E.; Jiang, Wenmian; Keane, D.; Kelly, J. J.; Korsch, W.; Kowalski, S.; Lourie, R.; Dm, Manley; Markowitz, P.; Mougey, J.; Ni, Bingbing; Payerle, T.; Pj, Pella; Reichelt, T.; Pm, Rutt; Spraker, M.; Tieger, D.; Turchinetz, W.; Pe, Ulmer; S, Van Verst; Jw, Watson; Lb, Weinstein; Rr, Whitney

doi:10.1103/physrevc.50.r1749

Cited by 185 publications

(99 citation statements)

References 26 publications

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“…4 very well. The values obtained from Rosenbluth separations [45,56,57,59,[69][70][71][72][73][74][75][76][77] would be much higher than those, but are not plotted because of their greater sensitivity to the two-photon corrections and the nuclear target model dependence. Figures 1-6 show not only the data at low Q 2 , the main focus of this study, but also over an expanded range to see the small structures in the data and models better.…”

Section: Results In Momentum Space Andmentioning

confidence: 99%

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Role of mesons in the electromagnetic form factors of the nucleon

Crawford

Akdoğan

Alarcón³

et al. 2010

Phys. Rev. C

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The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q 2 behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q 2 or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as "charge distributions," nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.

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Section: Results In Momentum Space Andmentioning

confidence: 99%

“…For the neutron the fit function was reduced to the sum of two dipoles, fit to the world polarized data as of 2008 of Refs. [53,54,70,71,[73][74][75]77,[98][99][100][101]. Again note the addition of early polarized measurements to the data set of Sec.…”

Section: B Results In Coordinate Spacementioning

confidence: 99%

Role of mesons in the electromagnetic form factors of the nucleon

Crawford

Akdoğan

Alarcón³

et al. 2010

Phys. Rev. C

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“…Moreover, the light-front spinors in Eqs. (18), (19) are no longer all in the nucleon rest frame, which will have observable consequences in the electromagnetic form factors. Also, the various total momentum ′ + ′ components, such as p + 12 and p + now appear in different frames, whereas in the BT case only M 0 occurs for p + in the nucleon rest frame.…”

mentioning

confidence: 99%

Relativistic quark spin coupling effects in the nucleon electromagnetic form factors

Araújo¹,

Suisso

Frederico

et al. 2000

Physics Letters B

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We investigate the effect of different forms of relativistic spin coupling of constituent quarks in the nucleon electromagnetic form factors. The fourdimensional integrations in the two-loop Feynman diagram are reduced to the null-plane, such that the light-front wave function is introduced in the computation of the form factors. The neutron charge form factor is very sensitive to different choices of spin coupling schemes, once its magnetic moment is fitted to the experimental value. The scalar coupling between two quarks is preferred by the neutron data, when a reasonable fit of the proton magnetic momentum is found.

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“…A modern extraction from the same data based on the Argonne V18 potential is shown by the open circles in fig.4 [7]. Also shown are the recent data from BATES, MAMI and NIKHEF [8]. These measurements invoke polarized targets or polarization transfer and thus have much less systematic uncertainties.…”

Section: Dispersion Relations Updatementioning

confidence: 99%

Baryon form factors: Model-independent results

Meißner

2000

Nuclear Physics A

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Baryon form factors can be analyzed in a largely model-independent fashion in terms of two complementary approaches. These are chiral perturbation theory and dispersion relations. I review the status of dispersive calculations of the nucleon electromagnetic form factors in the light of new data. Then, I present the leading one-loop chiral perturbation theory analysis of the hyperon and the strange nucleon form factors. Open problems and challenges are also discussed.Comment: 10 pp, LaTeX, 10 figures, plenary talk, NUCLEON '99, Frascati, June 1999, to appear in the proceedings (Nucl. Phys. A), typos corrected, references update

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Electric form factor of the neutron from theH2(e→,e

Cited by 185 publications

References 26 publications

Role of mesons in the electromagnetic form factors of the nucleon

Role of mesons in the electromagnetic form factors of the nucleon

Relativistic quark spin coupling effects in the nucleon electromagnetic form factors

Baryon form factors: Model-independent results

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