| Literature DB >> 18851203 |
G S Adams1, M Anderson, J P Cummings, I Danko, D Hu, B Moziak, J Napolitano, Q He, J Insler, H Muramatsu, C S Park, E H Thorndike, F Yang, M Artuso, S Blusk, S Khalil, J Li, R Mountain, S Nisar, K Randrianarivony, N Sultana, T Skwarnicki, S Stone, J C Wang, L M Zhang, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, P Naik, J Rademacker, D M Asner, K W Edwards, J Reed, R A Briere, T Ferguson, J S Y Ma, G Tatishvili, H Vogel, M E Watkins, J L Rosner, J P Alexander, D G Cassel, J E Duboscq, R Ehrlich, L Fields, R S Galik, L Gibbons, R Gray, S W Gray, D L Hartill, B K Heltsley, D Hertz, J M Hunt, J Kandaswamy, D L Kreinick, V E Kuznetsov, J Ledoux, H Mahlke-Krüger, D Mohapatra, P U E Onyisi, J R Patterson, D Peterson, D Riley, A Ryd, A J Sadoff, X Shi, S Stroiney, W M Sun, T Wilksen, S B Athar, R Patel, J Yelton, P Rubin, B I Eisenstein, I Karliner, S Mehrabyan, N Lowrey, M Selen, E J White, J Wiss, R E Mitchell, M R Shepherd, D Besson, T K Pedlar, D Cronin-Hennessy, K Y Gao, J Hietala, Y Kubota, T Klein, B W Lang, R Poling, A W Scott, P Zweber, S Dobbs, Z Metreveli, K K Seth, A Tomaradze, J Libby, A Powell, G Wilkinson, K M Ecklund, W Love, V Savinov, H Mendez, J Y Ge, D H Miller, I P J Shipsey, B Xin.
Abstract
We report the first observation of the decay J/psi-->3gamma. The signal has a statistical significance of 6sigma and corresponds to a branching fraction of B(J/psi-->3gamma)=(1.2+/-0.3+/-0.2)x10;{-5}, in which the errors are statistical and systematic, respectively. The measurement uses psi(2S)-->pi;{+}pi;{-}J/psi events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider.Entities:
Year: 2008 PMID： 18851203 DOI： 10.1103/PhysRevLett.101.101801
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161