Observation of χcJ radiative decays to light vector mesons

J. V. Bennett, 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, Sean A Dobbs, Z. Metreveli, Kamal K Seth, B. J.Y. Tan, Amiran Tomaradze, J. LibbyL. Martin, 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, G. S. Adams, 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, G. Tatishvili, H. Vogel, 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

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22 Scopus citations

Abstract

Using a total of 2.74×107 decays of the ψ(2S) collected with the CLEO-c detector, we present a study of χcJ→γV, where V=ρ0, ω, □. The transitions χc1→γρ0 and χc1→γω are observed with B(χc1→γρ0)=(2. 43±0.19±0.22)×10-4 and B(χc1→γω)=(8. 3±1.5±1.2)×10-5. In the χc1→γρ0 transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other χcJ states to light vector mesons are presented.

Original languageEnglish (US)
Article number151801
JournalPhysical review letters
Volume101
Issue number15
DOIs
StatePublished - Oct 8 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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