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Upper limits for the photoproduction cross section for the Φ--(1860) pentaquark state off the deuteron

  • H. Egiyan
  • , J. Langheinrich
  • , R. W. Gothe
  • , L. Graham
  • , M. Holtrop
  • , H. Lu
  • , P. Mattione
  • , G. Mutchler
  • , K. Park
  • , E. S. Smith
  • , S. Stepanyan
  • , Z. W. Zhao
  • , K. P. Adhikari
  • , M. Aghasyan
  • , M. Anghinolfi
  • , H. Baghdasaryan
  • , J. Ball
  • , N. A. Baltzell
  • , M. Battaglieri
  • , I. Bedlinskiy
  • R. P. Bennett, A. S. Biselli, C. Bookwalter, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, D. S. Carman, A. Celentano, S. Chandavar, M. Contalbrigo, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, R. Dickson, C. Djalali, D. Doughty, R. Dupre, A. El Alaoui, L. El Fassi, P. Eugenio, G. Fedotov, S. Fegan, A. Fradi, M. Y. Gabrielyan, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, E. Golovatch, K. A. Griffioen, M. Guidal, N. Guler, L. Guo, V. Gyurjyan, K. Hafidi, H. Hakobyan, C. Hanretty, D. Heddle, K. Hicks, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, H. S. Jo, K. Joo, P. Khetarpal, A. Kim, W. Kim, A. Klein, F. J. Klein, V. Kubarovsky, S. V. Kuleshov, K. Livingston, I. J.D. MacGregor, Y. Mao, M. Mayer, B. McKinnon, V. Mokeev, E. Munevar, P. Nadel-Turonski, A. Ni, G. Niculescu, A. I. Ostrovidov, M. Paolone, L. Pappalardo, R. Paremuzyan, S. Park, E. Pasyuk, S. Anefalos Pereira, E. Phelps, O. Pogorelko, S. Pozdniakov, J. W. Price, S. Procureur, D. Protopopescu, B. A. Raue, G. Ricco, D. Rimal, M. Ripani, B. G. Ritchie, G. Rosner, P. Rossi, F. Sabatié, M. S. Saini, C. Salgado, D. Schott, R. A. Schumacher, E. Seder, H. Seraydaryan, Y. G. Sharabian, G. D. Smith, D. I. Sober, S. S. Stepanyan, S. Strauch, M. Taiuti, W. Tang, C. E. Taylor, D. J. Tedeschi, M. Ungaro, E. Voutier, D. P. Watts, L. B. Weinstein, D. P. Weygand, M. H. Wood, N. Zachariou, L. Zana, B. Zhao
  • University of New Hampshire
  • Thomas Jefferson National Accelerator Facility
  • University of South Carolina
  • Carnegie Mellon University
  • Rice University
  • University of Virginia
  • Old Dominion University
  • National Institute for Nuclear Physics
  • CEA Saclay
  • Argonne National Laboratory
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Fairfield University
  • Florida State University
  • University of Edinburgh
  • George Washington University
  • Universidad Técnica Federico Santa Maria
  • Ohio University
  • University of Rome Tor Vergata
  • A. Alikhanian Yerevan Institute of Physics
  • Christopher Newport University
  • University of Glasgow
  • Institut de Physique Nucléaire Orsay
  • Florida International University
  • University of Richmond
  • James Madison University
  • University of California at Los Angeles
  • University of Connecticut
  • Lomonosov Moscow State University
  • College of William and Mary
  • Los Alamos National Laboratory
  • Kyungpook National University
  • Catholic University of America
  • Rensselaer Polytechnic Institute
  • Arizona State University
  • California State University Dominguez Hills
  • University of Genoa
  • Norfolk State University
  • Idaho State University
  • Université Joseph Fourier Grenoble 1
  • Canisius College

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We searched for the Φ--(1860) pentaquark in the photoproduction process off the deuteron in the Ξ-π --decay channel using CLAS. The invariant-mass spectrum of the Ξ-π- system does not indicate any statistically significant enhancement near the reported mass M=1.860 GeV. The statistical analysis of the sideband-subtracted mass spectrum yields a 90%-confidence-level upper limit of 0.7 nb for the photoproduction cross section of Φ--(1860) with a consecutive decay into Ξ-π- in the photon-energy range 4.5GeV<E γ<5.5GeV.

Original languageEnglish
Article number015205
JournalPhysical Review C - Nuclear Physics
Volume85
Issue number1
DOIs
StatePublished - 30 Jan 2012

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