Results on charmonium from the Crystal Ball

Results from the Crystal Ball experiment at SPEAR are presented. A preliminary analysis of the 3 photon final state from the J/ psi (3095) and of the cascade decays of the psi '(3684) yield new upper limits on the controversial states X(2820), chi (3455) and the even C- parity state at 3.59 GeV...

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Detalles Bibliográficos
Autores principales: Partridge, R, Aschman, D, Bloom, Elliott D, Bulos, F, Burnett, T, Cavalli-Sforza, M, Chestnut, R, Coyne, D, Gaiser, J, Godfrey, G, Hofstadter, R, Kiesling, C, Kirkbride, I, Kolanoski, H, Kollmann, W, Liberman, A, O'Reilly, J, Oreglia, M J, Peck, C, Porter, F, Richardson, M, Sadrozinski, H F W, Strauch, K, Tompkins, J, Wacker, K
Lenguaje:eng
Publicado: 1979
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/875236
Descripción
Sumario:Results from the Crystal Ball experiment at SPEAR are presented. A preliminary analysis of the 3 photon final state from the J/ psi (3095) and of the cascade decays of the psi '(3684) yield new upper limits on the controversial states X(2820), chi (3455) and the even C- parity state at 3.59 GeV. From inclusive gamma -ray spectra of the J/ psi and psi ' preliminary branching ratios for psi ' to chi states and upper limits for J/ psi , psi ' to eta /sub c/, eta /sub c/' are given. (15 refs).

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