Single π+ electroproduction on the proton in the first and second resonance regions at 0.25GeV2<Q2<0.65GeV2

H. Egiyan, I. G. Aznauryan, V. D. Burkert, K. A. Griffioen, K. Joo, R. Minehart, L. C. Smith, G. Adams, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Audit, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, N. Baltzel, S. Barrow, M. BattaglieriK. Beard, M. Bektasoglu, M. Bellis, N. Benmouna, N. Bianchi, A. S. Biselli, S. Boiarinov, B. E. Bonner, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, C. Cetina, S. Chen, P. L. Cole, A. Coleman, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. DeSanctis, R. DeVita, P. V. Degtyarenko, H. Denizli, L. Dennis, K. V. Dharmawardane, C. Djalali, G. E. Dodge, J. Donnely, D. Doughty, P. Dragovitsch, Michael Dugger, S. Dytman, O. P. Dzyubak, M. Eckhause, K. S. Egiyan, L. Elouadrhiri, A. Empl, P. Eugenio, R. Fatemi, G. Fedotov, G. Feldman, R. J. Feuerbach, T. A. Forest, H. Funsten, S. J. Gaff, M. Gai, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, G. T. Goetz, C. I O Gordon, R. Gothe, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, R. S. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. Ishkhanov, M. M. Ito, D. Jenkins, H. G. Juengst, J. H. Kelley, J. D. Kellie, M. Khandaker, D. H. Kim, K. Y. Kim, K. Kim, M. S. Kim, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Klusman, M. Kossov, L. H. Kramer, Y. Kuang, V. Kubarovsky, S. E. Kuhn, J. Kuhn, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, Ji Li, K. Livingston, A. Longhi, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, B. McKinnon, J. W C McNabb, B. A. Mecking, S. Mehrabyan, J. J. Melone, M. D. Mestayer, C. A. Meyer, K. Mikhailov, M. Mirazita, R. Miskimen, V. Mokeev, L. Morand, S. A. Morrow, V. Muccifora, J. Mueller, L. Y. Murphy, G. S. Mutchler, J. Napolitano, R. Nasseripour, S. O. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, K. Park, E. Pasyuk, G. Peterson, S. A. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, C. Salgado, J. P. Santoro, V. Sapunenko, M. Sargsyan, R. A. Schumacher, V. S. Serov, A. Shafi, Y. G. Sharabian, J. Shaw, S. Simionatto, A. V. Skabelin, E. S. Smith, D. I. Sober, M. Spraker, A. Stavinsky, S. Stepanyan, P. Stoler, I. I. Strakovsky, S. Strauch, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, A. Tkabladze, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, L. B. Weinstein, H. Weller, D. P. Weygand, C. S. Whisnant, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, J. Zhang, J. Zhao, Z. Zhou

Research output: Contribution to journalArticle

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Abstract

The ep→e'π+n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV2<Q2<0.65 GeV2 range by use of the CLAS detector at Thomas Jefferson National Accelerator Facility. For the first time, to our knowledge, the absolute cross sections were measured, covering nearly the full angular range in the hadronic center-of-mass frame. We extracted the structure functions σTL,σTT, and the linear combination σT+εσL by fitting the dependence of the measured cross sections and compared them with the MAID and Sato-Lee models.

Original languageEnglish (US)
Article number025204
JournalPhysical Review C - Nuclear Physics
Volume73
Issue number2
DOIs
StatePublished - Jan 1 2006

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Egiyan, H., Aznauryan, I. G., Burkert, V. D., Griffioen, K. A., Joo, K., Minehart, R., Smith, L. C., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., Asavapibhop, B., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Ball, J. P., Baltzel, N., Barrow, S., ... Zhou, Z. (2006). Single π+ electroproduction on the proton in the first and second resonance regions at 0.25GeV2<Q2<0.65GeV2. Physical Review C - Nuclear Physics, 73(2), [025204]. https://doi.org/10.1103/PhysRevC.73.025204