Kinematically complete measurement of the proton structure function [Formula Presented] in the resonance region and evaluation of its moments

M. Osipenko, G. Ricco, M. Taiuti, M. Ripani, S. Simula, G. Adams, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Audit, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, S. Barrow, M. Battaglieri, K. Beard, M. Bektasoglu, N. Bianchi, A. S. BiselliS. Boiarinov, P. Bosted, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, J. R. Calarco, D. S. Carman, B. Carnahan, A. Cazes, C. Cetina, L. Ciciani, R. Clark, P. L. Cole, A. Coleman, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, R. Vita, K. V. Dharmawardane, C. Djalali, G. E. Dodge, J. J. Domingo, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, M. Eckhause, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, R. Fatemi, G. Fedotov, R. J. Feuerbach, J. Ficenec, T. A. Forest, H. Funsten, S. J. Gaff, M. Gai, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, K. Griffioen, E. Golovatch, C. Gordon, M. Guidal, M. Guillo, L. Guo, V. Gyurjyan, C. Hadjidakis, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, R. S. Hicks, M. Holtrop, J. Hu, C. E. Hyde-Wright, B. S. Ishkhanov, M. M. Ito, D. Jenkins, K. Joo, 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, S. E. Kuhn, J. Kuhn, J. Lachniet, J. M. Laget, D. Lawrence, Ji Li, K. Livingston, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, J. McCarthy, J. W.C. McNabb, B. A. Mecking, S. Mehrabyan, M. D. Mestayer, C. A. Meyer, K. Mikhailov, R. Minehart, 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, A. K. Opper, K. Park, K. Paschke, 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, B. G. Ritchie, F. Ronchetti, 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, Y. G. Sharabian, J. Shaw, S. Simionatto, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, M. Spraker, A. Stavinsky, S. Stepanyan, P. Stoler, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, 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, B. Zhang, J. Zhao, Z. Zhou

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We measured the inclusive electron-proton cross section in the nucleon resonance region [Formula Presented] at momentum transfers [Formula Presented] below [Formula Presented] with the CLAS detector. The large acceptance of CLAS allowed the measurement of the cross section in a large, contiguous two-dimensional range of [Formula Presented] and x, making it possible to perform an integration of the data at fixed [Formula Presented] over the significant x interval. From these data we extracted the structure function [Formula Presented] and, by including other world data, we studied the [Formula Presented] evolution of its moments, [Formula Presented] in order to estimate higher twist contributions. The small statistical and systematic uncertainties of the CLAS data allow a precise extraction of the higher twists and will require significant improvements in theoretical predictions if a meaningful comparison with these new experimental results is to be made.

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number9
StatePublished - 2003

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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