Evidence for decays of hc to multipion final states

G. S. Adams, D. Hu, B. Moziak, J. Napolitano, K. M. Ecklund, Q. He, J. Insler, H. Muramatsu, C. S. Park, E. H. Thorndike, F. Yang, Marina Artuso, Steven Roy Blusk, S. Khalil, R. Mountain, K. Randrianarivony, Tomasz Skwarnicki, Sheldon Stone, J. C. Wang, L. M. ZhangG. Bonvicini, D. Cinabro, A. Lincoln, M. J. Smith, P. Zhou, J. Zhu, P. Naik, J. Rademacker, D. M. Asner, K. W. Edwards, J. Reed, A. N. Robichaud, G. Tatishvili, E. J. White, R. A. Briere, H. Vogel, P. U E Onyisi, J. L. Rosner, J. P. Alexander, D. G. Cassel, R. Ehrlich, L. Fields, L. Gibbons, S. W. Gray, D. L. Hartill, B. K. Heltsley, J. M. Hunt, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, J. Ledoux, H. Mahlke-Krüger, J. R. Patterson, D. Peterson, D. Riley, A. Ryd, A. J. Sadoff, X. Shi, S. Stroiney, W. M. Sun, T. Wilksen, J. Yelton, P. Rubin, N. Lowrey, S. Mehrabyan, M. Selen, J. Wiss, M. Kornicer, R. E. Mitchell, M. R. Shepherd, C. M. Tarbert, D. Besson, T. K. Pedlar, J. Xavier, D. Cronin-Hennessy, K. Y. Gao, J. Hietala, T. Klein, R. Poling, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth, B. J Y Tan, A. Tomaradze, S. Brisbane, J. Libby, L. Martin, A. Powell, C. Thomas, G. Wilkinson, H. Mendez, J. Y. Ge, D. H. Miller, I. P J Shipsey, B. Xin

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Abstract

Using a sample of 2.59×107 ψ(2S) decays collected by the CLEO-c detector, we present results of a search for the decay chain ψ(2S)→π0hc, hc→n(π+π-)π0, n=1, 2, 3. We observe no significant signals for n=1 and n=3 and set upper limits for the corresponding decay rates. First evidence for the decay hc→π+π-π+π-π0 is presented, and a product branching fraction of B(ψ(2S)→hcπ0) ×B(hc→2(π+π-)π0)=1.88-0.45-0.30+0.48+0.47×10-5 is measured. This result implies that hc→hadrons and hc→γηc have comparable rates, in agreement with expectations.

Original languageEnglish (US)
Article number051106
JournalPhysical Review D
Volume80
Issue number5
DOIs
StatePublished - Sep 18 2009

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Adams, G. S., Hu, D., Moziak, B., Napolitano, J., Ecklund, K. M., He, Q., Insler, J., Muramatsu, H., Park, C. S., Thorndike, E. H., Yang, F., Artuso, M., Blusk, S. R., Khalil, S., Mountain, R., Randrianarivony, K., Skwarnicki, T., Stone, S., Wang, J. C., ... Xin, B. (2009). Evidence for decays of hc to multipion final states. Physical Review D, 80(5), [051106]. https://doi.org/10.1103/PhysRevD.80.051106