A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$

Details A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$ A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$

2001-05-03

arxiv.org/abs/nucl-ex/0105001v1

Phys.Rev.Lett.87:081801,2001

Physics

Nuclear Physics

Nuclear Experiment

Latex2e 5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.87.081801

We report the first measurement of the neutron electric form factor $G_E^n$ via $\vec{d}(\vec{e},e'n)p$ using a solid polarized target. $G_E^n$ was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia, $^{15}$ND$_3$. The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility (TJNAF) in quasi free kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find $G_E^n = 0.04632\pm0.00616 (stat.) \pm0.00341 (syst.)$ at $Q^2 = 0.495$ (GeV/c)$^2$.

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