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Published May 25, 1995 | public
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A-dependence of nuclear transparency in quasielastic A(e,e'p) at high Q^2

O'Neill, T. G.
Lorenzon, W.
Arrington, J.
Beise, E. J.
Belz, J. E.
Filippone, B. W. ORCID icon
Gao, H.
McKeown, R. D.
Mueller, B.
Lung, A.
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Abstract

The A-dependence of the quasielastic A(e,e'p) reaction has been studied at SLAC with ^2H, C, Fe, and Au nuclei at momentum transfers Q^2 = 1, 3, 5, and 6.8 (GeV/c)2. We extract the nuclear transparency T(A,Q^2), a measure of the average probability that the struck proton escapes from the nucleus A without interaction. Several calculations predict a significant increase in T with momentum transfer, a phenomenon known as Color Transparency. Within the measurement uncertainty, no increase is seen for any of the nuclei studied.

Additional Information

© 1995 Elsevier Science B.V. Received 22 February 1995 Editor: J.P. Schiffer. This work was supported in part by the National Science Foundation, Grants No. PHY-9014406 and PHY-9114958 (American), PHY-9115574 (Caltech), PHY-9101404 (CSLA), PHY-9208119 (RPI), and PHY-9019983 (Wisconsin), and by the Department of Energy, Contracts No. W-31-109-ENG-38 (Argonne), DE-FG02-86ER40269 (Colorado), W-7405-Eng-48 (LLNL), DE-AC02-76ER03069 (MIT), DE-AC03-76SF00515 (SLAC), and DE-FG03-88ER40439 (Stanford). RGM acknowledges the support of a Presidential Young Investigator Award from NSF. BWF acknowledges the support of a Sloan Foundation Fellowship.

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August 20, 2023
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October 25, 2023