Bayesian analysis of pentaquark signals from CLAS data

Ireland, D. et al. (2008) Bayesian analysis of pentaquark signals from CLAS data. Physical Review Letters, 100(5), 052001. (doi: 10.1103/PhysRevLett.100.052001)

Abstract

e examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a Θ+ pentaquark, while the other found no such evidence. The unique feature of these two experiments was that they were performed with the same experimental setup. Using a Bayesian analysis, we find that the results of the two experiments are in fact compatible with each other, but that the first measurement did not contain sufficient information to determine unambiguously the existence of a Θ+. Further, we suggest a means by which the existence of a new candidate particle can be tested in a rigorous manner.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sokhan, Dr Daria and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Protopopescu, Dr Dan and Ireland, Professor David and Hassall, Mr Neil and Kellie, Dr James and Rosner, Professor Guenther
• Authors: Ireland, D., McKinnon, B., Protopopescu, D., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J., Baltzell, N., Batourine, V., Battaglieri, M., Bedlinskiy, I., Bellis, M., Benmouna, N., Berman, B., Biselli, A., Blaszczyk, L., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W., Brooks, W., Burkert, V., Butuceanu, C., Calarco, J., Careccia, S., Carman, D., Casey, L., Chen, S., Cheng, L., Cole, P., Collins, P., Coltharp, P., Crabb, D., Crede, V., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P., Deur, A., Dickson, R., Djalali, C., Dodge, G., Donnelly, J., Doughty, D., Dugger, M., Dzyubak, O., Egiyan, K., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Feldman, G., Fradi, A., Funsten, H., Garcon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G., Giovanetti, K., Girod, F., Goetz, J., Gohn, W., Gonenc, A., Gothe, R., Griffioen, K., Guidal, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hersman, F., Hleiqawi, I., Holtrop, M., Hyde-Wright, C., Ilieva, Y., Ishkhanov, B., Isupov, E., Jenkins, D., Jo, H., Johnstone, J., Joo, K., Juengst, H., Kalantarians, N., Kellie, J., Khandaker, M., Kim, W., Klein, A., Klein, F., Kossov, M., Krahn, Z., Kramer, L., Kubarovsky, V., Kuhn, J., Kuleshov, S., Kuznetsov, V., Lachniet, J., Laget, J., Langheinrich, J., Lawrence, D., Livingston, K., Lu, H., MacCormick, M., Markov, N., Mattione, P., Mecking, B., Mestayer, M., Meyer, C., Mibe, T., Mikhailov, K., Mirazita, M., Miskimen, R., Mokeev, V., Moreno, B., Moriya, K., Morrow, S., Moteabbed, M., Munevar, E., Mutchler, G., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B., Niroula, M., Niyazov, R., Nozar, M., Osipenko, M., Ostrovidov, A., Park, K., Pasyuk, E., Paterson, C., Pereira, S., Pierce, J., Pivnyuk, N., Pogorelko, O., Pozdniakov, S., Price, J., Procureur, S., Prok, Y., Raue, B., Ricco, G., Ripani, M., Ritchie, B., Ronchetti, F., Rosner, G., Rossi, P., Sabatie, F., Salamanca, J., Salgado, C., Santoro, J., Sapunenko, V., Schumacher, R., Serov, V., Sharabian, Y., Sharov, D., Shvedunov, N., Smith, L., Sober, D., Sokhan, D., Stavinsky, A., Stepanyan, S., Stepanyan, S., Stokes, B., Stoler, P., Strauch, S., Taiuti, M., Tedeschi, D., Tkabladze, A., Tkachenko, S., Tur, C., Ungaro, M., Vineyard, M., Vlassov, A., Watts, D., Weinstein, L., Weygand, D., Williams, M., Wolin, E., Wood, M., Yegneswaran, A., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114
• Published Online: 06 February 2008