Radiative decays of the Υ(1S) to γπ0π0, γηη and γπ0η

D. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, A. Smith, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, K. Arms, H. SeveriniS. A. Dytman, W. Love, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, I. P.J. Shipsey, G. S. Adams, M. Anderson, J. P. Cummings, I. Danko, J. Napolitano, Q. He, H. Muramatsu, C. S. Park, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, J. Li, N. Menaa, R. Mountain, S. Nisar, K. Randrianarivony, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, R. A. Briere, G. P. Chen, J. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, K. Berkelman, D. G. Cassel, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U.E. Onyisi, J. R. Patterson, D. Peterson, E. A. Phillips, J. Pivarski, D. Riley, A. Ryd, A. J. Sadoff, H. Schwarthoff, X. Shi, S. Stroiney, W. M. Sun, T. Wilksen, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton, P. Rubin, C. Cawlfield, B. I. Eisenstein, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, E. J. White, J. Wiss, M. R. Shepherd, D. M. Asner, K. W. Edwards

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

We report on a study of exclusive radiative decays of the Υ(1S) resonance into the final states γπ0π0, γηη and γπ0η, using 1.13fb-1 of e+e- annihilation data collected at s=9.46GeV with the CLEO III detector operating at the Cornell Electron Storage Ring. In the channel γπ0π0, we measure the branching ratio for the decay mode Υ(1S)→γf2(1270) to be (10.5±1.6(stat)-1.8+1. 9(syst))×10-5. We place upper limits on the product branching ratios for the isoscalar resonances f0(1500) and f0(1710) for the π0π0 and ηη decay channels. We also set an upper limit on the Υ(1S) radiative decay into π0η.

Original languageEnglish (US)
Article number072001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number7
DOIs
StatePublished - Apr 5 2007

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Hietala, J., Kubota, Y., Klein, T., Lang, B. W., Poling, R., Scott, A. W., Smith, A., Dobbs, S., Metreveli, Z., Seth, K. K., Tomaradze, A., Zweber, P., Ernst, J., Arms, K., ... Edwards, K. W. (2007). Radiative decays of the Υ(1S) to γπ0π0, γηη and γπ0η. Physical Review D - Particles, Fields, Gravitation and Cosmology, 75(7), [072001]. https://doi.org/10.1103/PhysRevD.75.072001