Evidence for the onset of color transparency in rho(0) electroproduction off nuclei
- El Fassi, L
- Zana, L
- Hafidi, K
- Holtrop, M
- Mustapha, B
- Brooks, W
- Hakobyan, H
- Zheng, X
- Adhikari, K
- Adikaram, D
- Aghasyan, M
- Amaryan, M
- Anghinolfi, M
- Arrington, J
- Avakian, H
- Baghdasaryan, H
- Battaglieri, M
- Batourine, V
- Bedlinskiy, I
- Biselli, A
- Bookwalter, C
- Branford, D
- Briscoe, W
- Bultmann, S
- Burkert, V
- Carman, D
- Celentano, A
- Chandavar, S
- Cole, P
- Contalbrigo, M
- Crede, V
- Daniel, A
- Dashyan, N
- De Vita, R
- De Sanctis, E
- Deur, A
- Dey, B
- Dickson, R
- Djalali, C
- Dodge, G
- Doughty, D
- Dupre, R
- Egiyan, H
- El Alaoui, A
- Elouadrhiri, L
- Eugenio, P
- Fedotov, G
- Fegan, S
- Gabrielyan, M
- Garcon, M
- Gevorgyan, N
- Gilfoyle, G
- Giovanetti, K
- Girod, F
- Goetz, J
- Gohn, W
- Golovatch, E
- Gothe, R
- Griffioen, K
- Guidal, M
- Guo, L
- Hanretty, C
- Heddle, D
- Hicks, K
- Holt, R
- Hyde, C
- Ilieva, Y
- Ireland, D
- Ishkhanov, B
- Isupov, E
- Jawalkar, S
- Keller, D
- Khandaker, M
- Khetarpal, P
- Kim, A
- Kim, W
- Klein, A
- Klein, F
- Kubarovsky, V
- Kuhn, S
- Kuleshov, S
- Kuznetsov, V
- Laget, J
- Lu, H
- MacGregor, I
- Mao, Y
- Markov, N
- Mayer, M
- McAndrew, J
- McKinnon, B
- Meyer, C
- Mineeva, T
- Mirazita, M
- Mokeev, V
- Moreno, B
- Moutarde, H
- Munevar, E
- Nadel Turonski, P
- Ni, A
- Niccolai, S
- Niculescu, G
- Niculescu, I
- Osipenkov, M
- Ostrovidov, A
- Pappalardo, L
- Paremuzyan, R
- Park, K
- Park, S
- Pasyuk, E
- Pereira, S
- Phelps, E
- Pozdniakov, S
- Price, J
- Procureur, S
- Protopopescu, D
- Raue, B
- Reimer, P
- Ricco, G
- Rimal, D
- Ripani, M
- Ritchie, B
- Rosner, G
- Rossi, P
- Sabatie, F
- Saini, M
- Salgado, C
- Schott, D
- Schumacher, R
- Seraydaryan, H
- Sharabian, Y
- Smith, E
- Smith, G
- Sober, D
- Sokhan, D
- Stepanyan, S
- Stepanyan, S
- Stoler, P
- Strauch, S
- Taiuti, M
- Tang, W
- Taylor, C
- Tedeschi, D
- Tkachenko, S
- Ungaro, M
- Vernarsky, B
- Vineyard, M
- Voskanyan, H
- Voutier, E
- Watts, D
- Weinstein, L
- Weygand, D
- Wood, M
- Zachariou, N
- Zhao, B
- Zhao, Z.
- D'ANGELO, ANNALISA
DOIAbstract
We have measured the nuclear transparency of the incoherent diffractive A(e,e' rho(0)) process in C-12 and Fe-56 targets relative to H-2 using a 5 GeV electron beam. The nuclear transparency, the ratio of the produced rho(0,)s on a nucleus relative to deuterium, which is sensitive to rho A interaction, was studied as function of the coherence length (l(c)), a lifetime of the hadronic fluctuation of the virtual photon, and the four-momentum transfer squared (Q(2)). While the transparency for both C-12 and Fe-56 showed no lc dependence, a significant Q(2) dependence was measured, which is consistent with calculations that included the color transparency effects. (C) 2012 Elsevier B.V. All rights reserved
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