PI0 PHOTOPRODUCTION ON THE PROTON FOR PHOTON ENERGIES FROM 0.675 TO 2.875-GEV

Dugger, M; Ritchie, Bg; Ball, Jp; Collins, P; Pasyuk, E; Arndt, Ra; Briscoe, Wj; Strakovsky, Ii; Workman, Rl; Adams, G; Amarian, M; Ambrozewicz, P; Anciant, E; Marco, Anghinolfi; Asavapibhop, B; Asryan, G; Audit, G; Avakian, H; Bagdasaryan, H; Baillie, N; Baltzell, Na; Barrow, S; Marco, Battaglieri; Beard, K; Bedlinskiy, I; Bektasoglu, M; Bellis, M; Benmouna, N; Berman, Bl; Nicola, Bianchi; Biselli, As; Bonner, Be; Bouchigny, S; Boiarinov, S; Bradford, R; Branford, D; Brooks, Wk; Bultmann, S; Burkert, Vd; Butuceanu, C; Calarco, Jr; Careccia, Sl; Carman, Ds; Carnahan, B; Chen, S; Cole, Pl; Coleman, A; Coltharp, P; Cords, D; Corvisiero, Pietro; Crabb, D; Crannell, H; Cummings, Jp; De Sanctis Enzo,; De Vita Raffaella,; Degtyarenko, Pv; Denizli, H; Dennis, L; Deur, A; Dharmawardane, Kv; Dhuga, Ks; Dickson, R; Djalali, C; Dodge, Ge; Donnelly, J; Doughty, D; Dragovitsch, P; Dytman, S; Dzyubak, Op; Egiyan, H; Egiyan, Ks; Elouadrhiri, L; Empl, A; Eugenio, P; Fatemi, R; Fedotov, G; Gerald, Feldman; Feuerbach, Rj; Ficenec, J; Forest, Ta; Funsten, H; Garcon, M; Gavalian, G; Gilfoyle, Gp; Giovanetti, Kl; Girod, Fx; Goetz, Jt; Gothe, Rw; Griffioen, Ka; Guidal, M; Guillo, M; Guler, N; Guo, L; Gyurjyan, V; Cynthia, Hadjidakis; Hakobyan, Rs; Hardie, J; Heddle, D; Hersman, Fw; Hicks, K; Hleiqawi, I; Holtrop, M; J, Hu; Huertas, M; Hyde Wright CE,; Ilieva, Y; Ireland, Dg; Ishkhanov, Bs; Ito, Mm; Jenkins, D; Hs, Jo; Joo, K; Juengst, Hg; Kalantarians, N; Kellie, Jd; Khandaker, M; Kim, Ky; Kim, K; Kim, W; Klein, A; Klein, Fj; Klimenko, Av; Klusman, M; Kossov, M; Krahn, Z; Kramer, Lh; Kubarovsky, V; Kuhn, J; Kuhn, Se; Kuznetsov, V; Lachniet, J; Laget, Jm; Langheinrich, J; Lawrence, D; Lee, T; Acs, Lima; Livingston, K; Lukashin, K; Manak, Jj; Marchand, C; Maximon, Lc; Mcaleer, S; Mckinnon, B; Jwc, Mcnabb; Mecking, Ba; Mestayer, Md; Meyer, Ca; Mibe, T; Mikhailov, K; Minehart, R; Marco, Mirazita; Miskimen, R; Mokeev, V; Moriya, K; Morrow, Sa; Valeria, Muccifora; Mueller, J; Mutchler, Gs; Nadel Turonski, P; Napolitano, J; Nasseripour, R; Niccolai, S; Niculescu, G; Niculescu, I; Niczyporuk, Bb; Niroula, M; Niyazov, Ra; Nozar, M; O'Rielly, Gv; Mikhail, Osipenko; Ostrovidov, Ai; Park, K; Paterson, C; Philips, Sa; Pierce, J; Pivnyuk, N; Pocanic, D; Pogorelko, O; Pozdniakov, S; Preedom, Bm; Price, Jw; Prok, Y; Protopopescu, D; Qin, Lm; Raue, Ba; Riccardi, G; Ricco, Giovanni; Marco, Ripani; Federico, Ronchetti; Rosner, G; Patrizia, Rossi; Rowntree, D; Rubin, Pd; Sabatie, F; Slamanca, J; Salgado Lopez Carlos Alberto,; Joseph, Santoro; Vladimir, Sapunenko; Schumacher, Ra; Serov, Vs; Shafi, A; Sharabian, Yg; Shaw, J; Simionatto, S; Skabelin, Av; Smith, Es; Smith, Lc; Sober, Di; Spraker, M; Stavinsky, A; Stepanyan, Ss; Stepanyan, S; Stokes, Be; Stoler, P; Strauch, S; Taiuti, MAURO GINO; Taylor, S; Tedeschi, Dj; Thompson, R; Tkabladze, A; Tkachenko, S; Todor, L; Tur, C; Ungaro, M; Vineyard, Mf; Vlassov, Av; Wang, K; Weinstein, Lb; Weller, H; Weygand, Dp; Williams Meurig Crispin Stowe,; Wolin, E; Wood, Mh; Yegneswaran, A; Yun, J; Zana, L; Zhang, J.

doi:10.1103/PhysRevC.76.025211

Differential cross sections for the reaction gamma p -> p pi(0) have been measured with the CEBAF Large Acceptance Spectrometer (CLAS) and a tagged photon beam with energies from 0.675 to 2.875 GeV. The results reported here possess greater accuracy in the absolute normalization than previous measurements. They disagree with recent CB-ELSA measurements for the process at forward scattering angles. Agreement with the SAID and MAID fits is found below 1 GeV. The present set of cross sections has been incorporated into the SAID database, and exploratory fits have been extended to 3 GeV. Resonance couplings have been extracted and compared to previous determinations.