Exclusive pi(0) electroproduction at W > 2 GeV with CLAS
- Bedlinskiy, I
- Kubarovsky, V
- Niccolai, S
- Stoler, P
- Adhikari, K
- Anderson, M
- Pereira, S
- Avakian, H
- Ball, J
- Baltzell, N
- Battaglieri, M
- Batourine, V
- Biselli, A
- Boiarinov, S
- Bono, J
- Briscoe, W
- Brooks, W
- Burkert, V
- Carman, D
- Celentano, A
- Chandavar, S
- Colaneri, L
- Cole, P
- Contalbrigo, M
- Cortes, O
- Crede, V
- Dashyan, N
- De Vita, R
- De Sanctis, E
- Deur, A
- Djalali, C
- Doughty, D
- Dupre, R
- Egiyan, H
- El Alaoui, A
- El Fassi, L
- Elouadrhiri, L
- Eugenio, P
- Fedotov, G
- Fegan, S
- Fleming, J
- Forest, T
- Garillon, B
- Garcon, M
- Gavalian, G
- Gevorgyan, N
- Ghandilyan, Y
- Gilfoyle, G
- Giovanetti, K
- Girod, F
- Golovatch, E
- Gothe, R
- Griffioen, K
- Guegan, B
- Guidal, M
- Guo, L
- Hafidi, K
- Hakobyan, H
- Harrison, N
- Hattawy, M
- Hicks, K
- Holtrop, M
- Ireland, D
- Ishkhanov, B
- Isupov, E
- Jenkins, D
- Jo, H
- Joo, K
- Keller, D
- Khandaker, M
- Kim, A
- Kim, W
- Klein, A
- Klein, F
- Koirala, S
- Kuhn, S
- Kuleshov, S
- Lenisa, P
- Levine, W
- Livingston, K
- Lu, H
- MacGregor, I
- Markov, N
- Mayer, M
- McKinnon, B
- Mirazita, M
- Mokeev, V
- Montgomery, R
- Moody, C
- Moutarde, H
- Movsisyan, A
- Camacho, C
- Nadel Turonski, P
- Niculescu, I
- Osipenko, M
- Ostrovidov, A
- Pappalardo, L
- Park, K
- Park, S
- Pasyuk, E
- Phelps, E
- Phelps, W
- Phillips, J
- Pisano, S
- Pogorelko, O
- Price, J
- Prok, Y
- Protopopescu, D
- Procureur, S
- Puckett, A
- Raue, B
- Ripani, M
- Ritchie, B
- Rizzo, A
- Rossi, P
- Roy, P
- Sabatie, F
- Salgado, C
- Schott, D
- Schumacher, R
- Seder, E
- Senderovich, I
- Sharabian, Y
- Simonyan, A
- Smith, G
- Sober, D
- Sokhan, D
- Stepanyan, S
- Strauch, S
- Sytnik, V
- Tang, W
- Tian, Y
- Ungaro, M
- Vlassov, A
- Voskanyan, H
- Voutier, E
- Walford, N
- Watts, D
- Wei, X
- Weinstein, L
- Yurov, M
- Zachariou, N
- Zana, L
- Zhang, J
- Zhao, Z
- Zonta, I.
- D'ANGELO, ANNALISA
DOIAbstract
Exclusive neutral-pion electroproduction (ep -> e'p'pi(0)) was measured at Jefferson Lab with a 5.75-GeV electron beam and the CLAS detector. Differential cross sections d(4)sigma/dtdQ(2)dx(B)d phi(pi) and structure functions sigma(T) + sigma(L), sigma(TT), and sigma(LT) as functions of t were obtained over a wide range of Q(2) and x(B). The data are compared with Regge and handbag theoretical calculations. Analyses in both frameworks find that a large dominance of transverse processes is necessary to explain the experimental results. For the Regge analysis it is found that the inclusion of vector meson rescattering processes is necessary to bring the magnitude of the calculated and measured structure functions into rough agreement. In the ...
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