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

Egiyan, H. et al. (2012) Upper limits for the photoproduction cross section for the Φ−−(1860) pentaquark state off the deuteron. Physical Review C, 85(1), Art. 015205. (doi: 10.1103/PhysRevC.85.015205)

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<Eγ<5.5GeV.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Fegan, Mr Stuart and Protopopescu, Dr Dan and MacGregor, Professor Douglas and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Ireland, Professor David and Rosner, Professor Guenther
• Authors: Egiyan, H., Langheinrich, J., Gothe, R. W., Graham, L., Holtrop, M., Lu, H., Mattione, P., Mutchler, G., Park, K., Smith, E. S., Stepanyan, S., Zhao, Z. W., Adhikari, K. P., Aghasyan, M., Anghinolfi, M., Baghdasaryan, H., Ball, J., Baltzell, N. A., Battaglieri, M., Bedlinskiy, I., Bennett, R. P., Biselli, A. S., Bookwalter, C., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Carman, D. S., Celentano, A., Chandavar, S., Contalbrigo, M., D’Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dickson, R., Djalali, C., Doughty, D., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Fegan, S., Fradi, A., Gabrielyan, M. Y., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gohn, W., Golovatch, E., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hanretty, C., Heddle, D., Hicks, K., Ilieva, Y., Ireland, D.G., Ishkhanov, B. S., Jo, H. S., Joo, K., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F. J., Kubarovsky, V., Kuleshov, S. V., Livingston, K., MacGregor, I.J.D., Mao, Y., Mayer, M., McKinnon, B., Mokeev, V., Munevar, E., Nadel-Turonski, P., Ni, A., Niculescu, G., Ostrovidov, A. I., Paolone, M., Pappalardo, L., Paremuzyan, R., Park, S., Pasyuk, E., Anefalos Pereira, S., Phelps, E., Pogorelko, O., Pozdniakov, S., Price, J. W., Procureur, S., Protopopescu, D., Raue, B. A., Ricco, G., Rimal, D., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatié, F., Saini, M. S., Salgado, C., Schott, D., Schumacher, R. A., Seder, E., Seraydaryan, H., Sharabian, Y. G., Smith, G. D., Sober, D. I., Stepanyan, S. S., Strauch, S., Taiuti, M., Tang, W., Taylor, C. E., Tedeschi, D. J., Ungaro, M., Voutier, E., Watts, D. P., Weinstein, L. B., Weygand, D. P., Wood, M. H., Zachariou, N., Zana, L., and Zhao, B.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review C
• ISSN: 0556-2813
• ISSN (Online): 1089-490X

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