Exclusive π0p electroproduction off protons in the resonance region at photon virtualities 0.4GeV2 ≤ Q2 ≤ 1GeV2
- Markov, N.
- Joo, K.
- Burkert, V. D.
- Mokeev, V. I.
- Smith, L. C.
- Ungaro, M.
- Adhikari, S.
- Amaryan, M. J.
- Angelini, G.
- Atac, H.
- Avakian, H.
- Ayerbe Gayoso, C.
- Baltzell, N. A.
- Barion, L.
- Battaglieri, M.
- Bedlinskiy, I.
- Bedlinskiy, I.
- Benmokhtar, F.
- Biselli, A. S.
- Bossù, F.
- Boiarinov, S.
- Briscoe, W. J.
- Brooks, W. K.
- Carman, D. S.
- Carvajal, J. C.
- Celentano, A.
- Chatagnon, P.
- Chetry, T.
- Cole, P. L.
- Contalbrigo, M.
- Crede, V.
- Ciullo, G.
- D'Angelo, A.
- Dashyan, N.
- De Vita, R.
- De Sanctis, E.
- Defurne, M.
- Deur, A.
- Diehl, S.
- Djalali, C.
- Dupre, R.
- Ehrhart, M.
- El Alaoui, A.
- El Fassi, L.
- Eugenio, P.
- Evans, C.
- Filippi, A.
- Ghandilyan, Y.
- Girod, F. X.
- Golovatch, E.
- Gothe, R. W.
- Griffioen, K. A.
- Guidal, M.
- Hafidi, K.
- Hakobyan, H.
- Hattawy, M.
- Hayward, T. B.
- Hicks, K.
- Holtrop, M.
- Ilieva, Y.
- Ireland, D. G.
- Ishkhanov, B. S.
- Isupov, E. L.
- Jenkins, D.
- Jo, H. S.
- Keller, D.
- Khachatryan, M.
- Khanal, A.
- Khandaker, M.
- Kim, A.
- Kim, C. W.
- Kim, W.
- Klein, F. J.
- Kubarovsky, V.
- Lanza, L.
- Leali, M.
- Livingston, K.
- MacGregor, I. J. D.
- Marchand, D.
- Mascagna, V.
- McKinnon, B.
- Mineeva, T.
- Mirazita, M.
- Nadel-Turonski, P.
- Nanda, S.
- Niccolai, S.
- Niculescu, G.
- Osipenko, M.
- Paolone, M.
- Pappalardo, L. L.
- Paremuzyan, R.
- Park, K.
- Pasyuk, E.
- Phelps, W.
- Pogorelko, O.
- Price, J. W.
- Prok, Y.
- Protopopescu, D.
- Ripani, M.
- Riser, D.
- Rizzo, A.
- Rosner, G.
- Rowley, J.
- Sabatié, F.
- Salgado, C.
- Schumacher, R. A.
- Sharabian, Y. G.
- Shrestha, U.
- Sokhan, D.
- Soto, O.
- Sparveris, N.
- Stepanyan, S.
- Stoler, P.
- Strakovsky, I. I.
- Strauch, S.
- Taiuti, M.
- Tan, J. A.
- Tyler, N.
- Venturelli, L.
- Voskanyan, H.
- Voutier, E.
- Wang, R.
- Wei, X.
- Wood, M. H.
- Zachariou, N.
DOIAbstract
The exclusive electroproduction process ep→e′p′π0 was measured in the range of photon virtualities Q2=0.4–1.0GeV2 and the invariant mass range of the pπ0 system of W=1.1–1.8 GeV. These kinematics are covered in exclusive π0 electroproduction off the proton with nearly complete angular coverage in the pπ0 center-of-mass system and with high statistical accuracy. Nearly 36 000 cross-section points were measured, and the structure functions σT+εσL,σLT, and σTT, were extracted via fitting the ϕπ0 dependence of the cross section. A Legendre polynomial expansion analysis demonstrates the sensitivity of our data to high-lying N* and Δ* resonances with M>1.6 GeV. As part of a broad effort to determine the electrocouplings of the N* and Δ* resona...
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