A-dependence of nuclear transparency in quasielastic A(e, ef'p) at high Q 2
The A-dependence of the quasielastic A(e, ef'p) reaction has been studied at SLAC with 2 H, 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. © 1995.
O'Neill, TG; Lorenzon, W; Anthony, P; Arnold, RG; Arrington, J; Beise, EJ; Belz, JE; Bosted, PE; Bulten, HJ; Chapman, MS; Coulter, KP; Dietrich, F; Ent, R; Epstein, M; Filippone, BW; Gao, H; Gearhart, RA; Geesaman, DF; Hansen, JO; Holt, RJ; Jackson, HE; Jones, CE; Keppel, CE; Kinney, ER; Kuhn, S; Lee, K; Lung, A; Makins, NCR; Margaziotis, DJ; McKeown, RD; Milner, RG; Mueller, B; Napolitano, J; Nelson, J; Papavassiliou, V; Petratos, GG; Potterveld, DH; Rock, SE; Spengos, M; Szalata, ZM; Tao, LH; van Bibber, K; van den Brand, JFJ; White, JL; Zeidman, B
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