Transverse Asymmetry A_T′ from the Quasielastic ^3He(e,e′) Process and the Neutron Magnetic Form Factor

Creators: Xu, W.; Filippone, B. W.; Hughes, E.; Jensen, J. S.; Jones, C. E.; McKeown, R. D.; Pavlin, T.; Pripstein, D.

Abstract

We have measured the transverse asymmetry A_T′ in ^3He(e,e′) quasielastic scattering in Hall A at Jefferson Laboratory with high precision for Q^2 values from 0.1 to 0.6 (GeV/c)^2. The neutron magnetic form factor GMn was extracted based on Faddeev calculations for Q^2 = 0.1 and 0.2 (GeV/c)^2 with an experimental uncertainty of less than 2%.

Additional Information

© 2000 The American Physical Society. Received 24 May 2000; published in the issue dated 2 October 2000. We thank the Hall A technical staff and the Jefferson Lab Accelerator Division for their outstanding support during this experiment. We thank S. Ishikawa and T.W. Donnelly for helpful discussions. This work was supported by the U.S. Department of Energy, DOE/EPSCoR, the U.S. National Science Foundation, the Science and Technology Cooperation Germany-Poland and the Polish Committee for Scientific Research, the Ministero dell'Università e della Ricerca Scientifica e Tecnologica (Murst), the French Commissariat à l'Énergie Atomique, Centre National de la Recherche Scientifique (CNRS), and the Italian Istituto Nazionale di Fisica Nucleare (INFN). This work was supported by DOE Contract No. DE-AC05-84ER40150 under which the Southeastern Universities Research Association (SURA) operates the Thomas Jefferson National Accelerator Facility. The numerical calculations were performed at the U.S. National Energy Research Scientific Computer Center (NERSC) and NIC in Jülich.

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