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)

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)

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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:McKinnon, Dr Bryan and Ireland, Professor David and Livingston, Dr Kenneth and MacGregor, Professor I and Fegan, Mr Stuart and Rosner, Professor Guenther and Protopopescu, Dr Dan
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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