Electroproduction of the Λ(1520) hyperon

S. P. Barrow, L. Dennis, S. B. McAleer, G. Adams, M. J. Amaryan, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, T. Auger, H. Avakian, J. P. Ball, M. Battaglieri, K. Beard, M. Bektasoglu, N. Bianchi, A. S. Biselli, S. Boiarinov, B. E. BonnerS. Bouchigny, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, J. R. Calarco, G. P. Capitani, D. S. Carman, B. Carnahan, L. Ciciani, R. Clark, P. L. Cole, A. Coleman, J. Connelly, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. DeSanctis, R. DeVita, P. V. Degtyarenko, R. Demirchyan, A. Deppman, K. S. Dhuga, C. Djalali, G. E. Dodge, J. Domingo, D. Doughty, P. Dragovitsch, Michael Dugger, S. Dytman, M. Eckhause, Y. Efremenko, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, L. Farhi, R. J. Feuerbach, J. Ficenec, T. A. Forest, V. Frolov, H. Funsten, S. J. Gaff, M. Gai, G. Gavalian, V. Gavrilov, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, K. Griffioen, M. Guidal, M. Guillo, V. Gyurjyan, D. Hancock, J. Hardie, D. Heddle, J. Heisenberg, F. W. Hersman, K. Hicks, R. S. Hicks, M. Holtrop, J. Hu, R. Fatemi, C. E. Hyde-Wright, M. M. Ito, D. Jenkins, K. Joo, J. H. Kelley, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, M. Klusman, M. Kossov, L. H. Kramer, Y. Kuang, S. E. Kuhn, J. M. Laget, D. Lawrence, G. A. Leksin, A. Longhi, M. Lucas, K. Lukashin, R. W. Major, J. J. Manak, C. Marchand, S. K. Matthews, J. McCarthy, J. W.C. McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, V. Muccifora, J. Mueller, L. Y. Murphy, G. S. Mutchler, J. Napolitano, S. O. Nelson, G. Niculescu, I. Niculescu, R. A. Niyazov, J. T. O’Brien, G. V. O’Rielly, A. K. Opper, K. Park, K. Paschke, E. Pasyuk, Y. Patois, G. Peterson, S. A. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, S. Pozdniakov, B. M. Preedom, J. W. Price, L. M. Qin, B. A. Raue, A. R. Reolon, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, C. Salgado, M. Sanzone-Arenhovel, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, J. Shaw, S. Shuvalov, A. V. Skabelin, E. S. Smith, T. Smith, L. C. Smith, D. I. Sober, M. Spraker, A. Stavinsky, S. Stepanyan, P. Stoler, M. Taiuti, S. Taylor, D. J. Tedeschi, R. Thompson, T. Y. Tung, M. F. Vineyard, A. V. Vlassov, K. Wang, L. B. Weinstein, A. Weisberg, H. Weller, D. P. Weygand, C. S. Whisnant, M. Witkowski, E. Wolin, A. Yegneswaran, J. Yun, B. Zhang, J. Zhao, Z. Zhou

Research output: Contribution to journalArticle

Abstract

The reaction [Formula Presented] with [Formula Presented] was studied at electron beam energies of 4.05, 4.25, and 4.46 GeV, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The [Formula Presented] [Formula Presented] and W dependencies of [Formula Presented] electroproduction are presented for the kinematic region [Formula Presented] and [Formula Presented] Also, the [Formula Presented] dependence of the [Formula Presented] decay angular distribution is presented for the first time. The [Formula Presented] angular distributions suggest t-channel diagrams dominate the production process. Fits to the [Formula Presented] t-channel helicity frame decay angular distributions indicate the [Formula Presented] parentage accounts for about 60% of the total yield, which suggests this reaction has a significant contribution from t-channel processes with either [Formula Presented] exchange or longitudinal coupling to an exchanged [Formula Presented] The [Formula Presented] dependence of the [Formula Presented] production cross section is the same as that observed for [Formula Presented] photo- and electroproduction.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume64
Issue number4
DOIs
StatePublished - Jan 1 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    Barrow, S. P., Dennis, L., McAleer, S. B., Adams, G., Amaryan, M. J., Anciant, E., Anghinolfi, M., Asavapibhop, B., Asryan, G., Audit, G., Auger, T., Avakian, H., Ball, J. P., Battaglieri, M., Beard, K., Bektasoglu, M., Bianchi, N., Biselli, A. S., Boiarinov, S., ... Zhou, Z. (2001). Electroproduction of the Λ(1520) hyperon. Physical Review C - Nuclear Physics, 64(4). https://doi.org/10.1103/PhysRevC.64.044601