A Measurement of the Neutron Electric Form Factor in Dvec ($$\vec{e}$$,e'n)p Quasielastic Scattering at Q2=0.5(GeV/c)2
- Univ. of Virginia, Charlottesville, VA (United States)
The form factors of the neutron give information on fundamental properties of the nucleons and provide a critical testing ground for models based on QCD. In late 1998, Jefferson Lab (JLAB) experiment E93-026 measured the spin-dependent part of the exclusive (e, e'n) scattering cross section from a polarized deuterated ammonia (15ND3) target at a four momentum transfer squared of Q2 = 0.5 (GeV/c)2. A longitudinally polarized electron beam was scattered from the polarized target and the quasi-elastically scattered electron was detected in coincidence with the knocked-out neutron. The data have been analyzed in terms of the spin-correlation parameter, or the electron-deuteron vector asymmetry (A$$V\atop{ed}$$), of (e, e'n) to determine the neutron electric form factor G$$n\atop{E}$$. The result is consistent with data from existing experiments and shows a good agreement with the Galster parameterization of G$$n\atop{E}$$ within experimental uncertainty.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 824965
- Report Number(s):
- JLAB-PHY--00-60; DOE/ER/40150--2774
- Country of Publication:
- United States
- Language:
- English
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