Differential cross section of γ n → K+ Σ- on bound neutrons with incident photons from 1.1 to 3.6 GeV

S. Anefalos Pereira, M. Mirazita, P. Rossi, E. De Sanctis, G. Niculescu, I. Niculescu, S. Stepanyan, K. P. Adhikari, M. Aghasyan, M. Anghinolfi, H. Baghdasaryan, J. Ball, M. Battaglieri, B. L. Berman, A. S. Biselli, C. Bookwalter, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. BurkertS. L. Careccia, D. S. Carman, P. L. Cole, P. Collins, V. Crede, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, A. Deur, B. Dey, S. Dhamija, R. Dickson, C. Djalali, D. Doughty, Michael Dugger, R. Dupre, A. El Alaoui, P. Eugenio, S. Fegan, T. A. Forest, M. Y. Gabrielyan, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, R. W. Gothe, K. A. Griffioen, M. Guidal, N. Guler, L. Guo, H. Hakobyan, C. Hanretty, N. Hassall, K. Hicks, M. Holtrop, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, S. S. Jawalkar, H. S. Jo, K. Joo, D. Keller, M. Khandaker, P. Khetarpal, W. Kim, F. J. Klein, V. Kubarovsky, S. V. Kuleshov, V. Kuznetsov, K. Livingston, M. Mayer, M. E. McCracken, B. McKinnon, C. A. Meyer, K. Mikhailov, T. Mineeva, V. Mokeev, B. Moreno, K. Moriya, B. Morrison, H. Moutarde, E. Munevar, P. Nadel-Turonski, S. Niccolai, M. Osipenko, A. I. Ostrovidov, K. Park, S. Park, E. Pasyuk, Y. Perrin, S. Pisano, O. Pogorelko, S. Pozdniakov, J. W. Price, S. Procureur, Y. Prok, D. Protopopescu, B. A. Raue, G. Ricco, M. Ripani, Barry Ritchie, G. Rosner, F. Sabatié, M. S. Saini, J. Salamanca, C. Salgado, R. A. Schumacher, E. Seder, H. Seraydaryan, Y. G. Sharabian, D. I. Sober, D. Sokhan, S. S. Stepanyan, P. Stoler, I. I. Strakovsky, S. Strauch, D. J. Tedeschi, S. Tkachenko, B. Vernarsky, M. F. Vineyard, E. Voutier, D. P. Watts, D. P. Weygand, M. H. Wood, L. Zana, J. Zhang, B. Zhao

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Differential cross sections of the reaction γ d → K+ Σ- (p) have been measured with the CLAS detector at Jefferson Lab using incident photons with energies between 1.1 and 3.6 GeV. This is the first complete set of strangeness photoproduction data on the neutron covering a broad angular range. At energies close to threshold and up to Eγ ∼ 1.8 GeV, the shape of the angular distribution is suggestive of the presence of s-channel production mechanisms. For Eγ > 1.8 GeV, a clear forward peak appears and becomes more prominent as the photon energy increases, suggesting contributions from t-channel production mechanisms. These data can be used to constrain future analysis of this reaction.

Original languageEnglish (US)
Pages (from-to)289-293
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume688
Issue number4-5
DOIs
StatePublished - May 10 2010

Keywords

  • Hyperon
  • Missing resonances
  • Nucleon resonance
  • Photoproduction
  • Strangeness

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Pereira, S. A., Mirazita, M., Rossi, P., De Sanctis, E., Niculescu, G., Niculescu, I., Stepanyan, S., Adhikari, K. P., Aghasyan, M., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Berman, B. L., Biselli, A. S., Bookwalter, C., Branford, D., Briscoe, W. J., Brooks, W. K., ... Zhao, B. (2010). Differential cross section of γ n → K+ Σ- on bound neutrons with incident photons from 1.1 to 3.6 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 688(4-5), 289-293. https://doi.org/10.1016/j.physletb.2010.04.028