A-dependence of nuclear transparency in quasielastic A( e, ef' p) at high [formula omitted]2

• Published in: Physics letters. B Vol. 351; no. 1; pp. 87 - 92
• Main Authors: O'Neill, T.G., Lorenzon, W., Anthony, P., Arnold, R.G., Arrington, J., Beise, E.J., Belz, J.E., Bosted, P.E., Bulten, H.-J., Chapman, M.S., Coulter, K.P., Dietrich, F., Ent, R., Epstein, M., Filippone, B.W., Gao, H., Gearhart, R.A., Geesaman, D.F., Hansen, J.-O., Holt, R.J., Jackson, H.E., Jones, C.E., Keppel, C.E., Kinney, E.R., Kuhn, S., Lee, K., Lung, A., Makins, N.C.R., Margaziotis, D.J., McKeown, R.D., Milner, R.G., Mueller, B., Napolitano, J., Nelson, J., Papavassiliou, V., Petratos, G.G., Potterveld, D.H., Rock, S.E., Spengos, M., Szalata, Z.M., Tao, L.H., van Bibber, K., van den Brand, J.F.J., White, J.L., Zeidman, B.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.1995
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(95)00362-O

The A-dependence of the quasielastic A( e, ef' 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.