Longitudinal and Transverse Response Functions in ^(56)Fe(e,e') at Momentum Transfer near 1 GeV/c

Creators: Chen, J. P.; Boyd, G.; Filippone, B. W.; Jourdan, J.; McKeown, R. D.; Milner, R. G.; Potterveld, D. H.; Walker, R. C.; Woodward, C.; Beck, D.

Abstract

Inclusive electron-scattering cross sections have been measured for ^(56)Fe in the quasielastic region at electron energies between 0.9 and 4.3 GeV, at scattering angles of 15° and 85°. Longitudinal and transverse response functions at a q of 1.14 GeV/c have been extracted using a Rosenbluth separation. The experimental Coulomb sum has been obtained with aid of an extrapolation. The longitudinal response function, after correction for Coulomb distortion, is lower than quasifree-scattering-model predictions at the quasielastic peak and on the high-ω side.

Additional Information

© 1991 The American Physical Society. Received 8 October 1990; published in the issue dated 11 March 1991. We acknowledge the support of the SLAC staff. We thank Dr. X. Ji and Dr. M. Traini for providing us with their calculations. This work was supported by U.S. Department of Energy Grants No. DE-FG05-86ER40-261 and No. DE-FG05-88ER40390 (University of Virginia) and No. DE-FGO3-88ER40439 (Stanford University), National Science Foundation Grants No.PHY -88-17296 (Cal tech) and No. PHY -89-10648 (Florida State University), and the Commonwealth of Virginia Center for Nuclear and High Energy Physics.

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