Xiong, F.
GAMMA* N --> N
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The transverse asymmetry A(T') from quasielastic polarized He-3(pol.)(e(pol.),e') process and the neutron magnetic form factor.

Xu, W. ; Dutta, D. ; Xiong, F. ; et al.
Phys.Rev.Lett. 85 (2000) 2900-2904, 2000.
Inspire Record 531416 DOI 10.17182/hepdata.31474

We have measured the transverse asymmetry from inclusive scattering of longitudinally polarized electrons from polarized 3He nuclei at quasi-elastic kinematics in Hall A at Jefferson Lab with high statistical and systematic precision. The neutron magnetic form factor was extracted based on Faddeev calculations with an experimental uncertainty of less than 2 %.

1 data table
Table 1

Ratio of neutron magnetic form-factor to dipole value.


Measurement of the neutron electric form factor G(E,n) in the quasifree H-2(e(pol.),e' n(pol.))p reaction.

Ostrick, M. ; Herberg, C. ; Andresen, H.G. ; et al.
Phys.Rev.Lett. 83 (1999) 276-279, 1999.
Inspire Record 506748 DOI 10.17182/hepdata.19444

The electric form factor of the neutron GE,n has been measured in the quasifree 2H(e→,e′n→)p reaction using the 855 MeV polarized cw electron beam of the Mainz Microtron MAMI. The polarization of the scattered neutrons was analyzed in a polarimeter consisting of two walls of plastic scintillators. The precession of the neutron spin in a magnetic field was used for the first time to circumvent the measurement of the effective analyzing power of the polarimeter and the beam polarization. In this way GE,n could be determined with little model dependence and experimental uncertainties. The result GE,n(0.34GeV2/c2)=0.0611±0.0069stat({+0.0069}{−0.0055})syst is larger than previously assumed.

1 data table
Table 1

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