The Charge Form Factor of the Neutron at Low Momentum Transfer from the ${}^2\vec{\mathrm{H}}(\vec{\mathrm{e}},{\mathrm{e}}^{\prime }\mathrm{n})\mathrm{p}$ Reaction

Abstract

We report new measurements of the neutron charge form factor at low momentum transfer using quasielastic electrodisintegration of the deuteron. Longitudinally polarized electrons at an energy of 850 MeV were scattered from an isotopically pure, highly polarized deuterium gas target. The scattered electrons and coincident neutrons were measured by the Bates Large Acceptance Spectrometer Toroid (BLAST) detector. The neutron form factor ratio $G_E^n/G_M^n$ was extracted from the beam-target vector asymmetry $A_{ed}^V$ at four-momentum transfers $Q^2=0.14$, 0.20, 0.29 and 0.42 (GeV/c)${}^2$.

5 pages, 3 figures, submitted to Phys. Rev. Lett

References in corpus (5)

• Dispersion analysis of the nucleon form factors including meson continua
• Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p)
• The nucleon electromagnetic form factors from Lattice QCD
• Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2
• Electroweak structure of the nucleon, meson cloud and light-cone wavefunctions

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