Electromagnetic decay of the Σ0(1385) to Λγ

Keller, D. et al. (2011) Electromagnetic decay of the Σ0(1385) to Λγ. Physical Review D, 83(7), 072004. (doi: 10.1103/PhysRevD.83.072004)

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The electromagnetic decay Σ0(1385)→Λγ was studied using the CLAS detector at the Thomas Jefferson National Accelerator Facility. A real photon beam with a maximum energy of 3.8 GeV was incident on a proton target, producing an exclusive final state of K+Σ*0. We report the decay widths ratio Σ0(1385)→Λγ/Σ0(1385)→Λπ0=1.42±0.12(stat)+0.11−0.07(sys)%. This ratio is larger than most theoretical predictions by factors ranging from 1.5–3, but is consistent with the only other experimental measurement. From the reported ratio we calculate the partial width and electromagnetic transition magnetic moment for Σ0(1385)→Λγ.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Fegan, Mr Stuart and Protopopescu, Dr Dan and Smith, Mr Gordon and MacGregor, Professor Douglas and McKinnon, Dr Bryan and Ireland, Professor David and Rosner, Professor Guenther
Authors: Keller, D., Hicks, K., Adhikari, K.P., Adhikari, K.P., Adikaram, D., Aghasyan, M., Amarian, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bennett, R.P., Biselli, A.S., Branford, D., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Casey, L., Cole, P.L., Contalbrigo, M., Crede, V., 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., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Fegan, S., Forest, T.A., Gabrielyan, M.Y., Gavalian, G., Gevorgyan, N., Giovanetti, K.L., Girod, F.X., Gohn, W., Golovatch, E., Gothe, R.W., Graham, L., Guidal, M., Guegan, B., Hafidi, K., Hakobyan, H., Hanretty, C., Holtrop, M., Ilieva, Y., Ireland, D.G., Isupov, E.L., Jawalkar, S.S., Jenkins, D., Jo, H.S., Joo, K., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F.J., Konczykowski, P., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Lu, H.Y., MacGregor, I.J.D., Markov, N., McAndrew, J., McKinnon, B., Meyer, C.A., Micherdzinska, A.M., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Moutarde, H., Munevar, E., Nadel-Turonski, P., Ni, A., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A.I., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Pereira, S. A., Pappalardo, L. L., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Raue, B.A., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Sabatie, F., Saini, M.S., Salgado, C., Schott, D., Schumacher, R.A., Seder, E., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Smith, G.D., Sober, D.I., Stepanyan, S.S., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Tang, W., Taylor, C.E., Vernarsky, B., Vineyard, M.F., Voutier, E., Weinstein, L.B., Watts, D.P., Wood, M.H., Zachariou, N., Zana, L., Zhao, B., and Zhao, Z.W.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN (Online):1089-4918
Published Online:21 April 2011

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