Evidence for the onset of color transparency in ρ<sup>0</sup> electroproduction off nuclei
- El Fassi, L.
- Zana, L.
- Hafidi, K.
- Holtrop, M.
- Mustapha, B.
- Brooks, W.K.
- Hakobyan, H.
- Zheng, X.
- Adhikari, K.P.
- Adikaram, D.
- Aghasyan, M.
- Amaryan, M.J.
- Anghinolfi, M.
- Arrington, J.
- Avakian, H.
- Baghdasaryan, H.
- Battaglieri, M.
- Batourine, V.
- Bedlinskiy, I.
- Biselli, A.S.
- Bookwalter, C.
- Branford, D.
- Briscoe, W.J.
- Bültmann, S.
- Burkert, V.D.
- Carman, D.S.
- Celentano, A.
- Chandavar, S.
- Cole, P.L.
- Contalbrigo, M.
- Crede, V.
- DʼAngelo, A.
- Daniel, A.
- Dashyan, N.
- De Vita, R.
- De Sanctis, E.
- Deur, A.
- Dey, B.
- Dickson, R.
- Djalali, C.
- Dodge, G.E.
- Doughty, D.
- Dupre, R.
- Egiyan, H.
- El Alaoui, A.
- Elouadrhiri, L.
- Eugenio, P.
- Fedotov, G.
- Fegan, S.
- Gabrielyan, M.Y.
- Garçon, M.
- Gevorgyan, N.
- Gilfoyle, G.P.
- Giovanetti, K.L.
- Girod, F.X.
- Goetz, J.T.
- Gohn, W.
- Golovatch, E.
- Gothe, R.W.
- Griffioen, K.A.
- Guidal, M.
- Guo, L.
- Hanretty, C.
- Heddle, D.
- Hicks, K.
- Holt, R.J.
- Hyde, C.E.
- Ilieva, Y.
- Ireland, D.G.
- Ishkhanov, B.S.
- Isupov, E.L.
- Jawalkar, S.S.
- Keller, D.
- Khandaker, M.
- Khetarpal, P.
- Kim, A.
- Kim, W.
- Klein, A.
- Klein, F.J.
- Kubarovsky, V.
- Kuhn, S.E.
- Kuleshov, S.V.
- Kuznetsov, V.
- Laget, J.M.
- Lu, H.Y.
- MacGregor, I.J.D.
- Mao, Y.
- Markov, N.
- Mayer, M.
- McAndrew, J.
- McKinnon, B.
- Meyer, C.A.
- Mineeva, T.
- Mirazita, M.
- Mokeev, V.
- Moreno, B.
- Moutarde, H.
- Munevar, E.
- Nadel-Turonski, P.
- Ni, A.
- Niccolai, S.
- Niculescu, G.
- Niculescu, I.
- Osipenko, M.
- Ostrovidov, A.I.
- Pappalardo, L.L.
- Paremuzyan, R.
- Park, K.
- Park, S.
- Pasyuk, E.
- Anefalos Pereira, S.
- Phelps, E.
- Pozdniakov, S.
- Price, J.W.
- Procureur, S.
- Protopopescu, D.
- Raue, B.A.
- Reimer, P.E.
- Ricco, G.
- Rimal, D.
- Ripani, M.
- Ritchie, B.G.
- Rosner, G.
- Rossi, P.
- Sabatié, F.
- Saini, M.S.
- Salgado, C.
- Schott, D.
- Schumacher, R.A.
- Seraydaryan, H.
- Sharabian, Y.G.
- Smith, E.S.
- Smith, G.D.
- Sober, D.I.
- Sokhan, D.
- Stepanyan, S.S.
- Stepanyan, S.
- Stoler, P.
- Strauch, S.
- Taiuti, M.
- Tang, W.
- Taylor, C.E.
- Tedeschi, D.J.
- Tkachenko, S.
- Ungaro, M.
- Vernarsky, B.
- Vineyard, M.F.
- Voskanyan, H.
- Voutier, E.
- Watts, D.
- Weinstein, L.B.
- Weygand, D.P.
- Wood, M.H.
- Zachariou, N.
- Zhao, B.
- Zhao, Z.W.
DOIAbstract
We have measured the nuclear transparency of the incoherent diffractive A(e,e′ρ0) process in 12C and 56Fe targets relative to 2H using a 5 GeV electron beam. The nuclear transparency, the ratio of the produced ρ0ʼs on a nucleus relative to deuterium, which is sensitive to ρA interaction, was studied as function of the coherence length (lc), a lifetime of the hadronic fluctuation of the virtual photon, and the four-momentum transfer squared (Q2). While the transparency for both 12C and 56Fe showed no lc dependence, a significant Q2 dependence was measured, which is consistent with calculations that included the color transparency effects
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