Suppressed decays of Ds+ mesons to two pseudoscalar mesons

G. S. Adams, 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, Marina Artuso, Steven Roy Blusk, S. Khalil, J. Li, N. Menaa, R. Mountain, S. NisarK. Randrianarivony, R. Sia, Tomasz Skwarnicki, Sheldon Stone, J. C. Wang, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, D. M. Asner, K. W. Edwards, P. Naik, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, 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, 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, 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. Ernst, K. M. Ecklund, H. Severini, W. Love, V. Savinov, A. Lopez, S. Mehrabyan, H. Mendez, J. Ramirez, J. Y. Ge, D. H. Miller, B. Sanghi, I. P J Shipsey, B. Xin

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Abstract

Using data collected near the Ds*+Ds- peak production energy Ecm=4170MeV by the CLEO-c detector, we study the decays of Ds+ mesons to two pseudoscalar mesons. We report on searches for the singly Cabibbo-suppressed Ds+ decay modes K+η, K+η′, π+KS0, K+π0, and the isospin-forbidden decay mode Ds+→π+π0. We normalize with respect to the Cabibbo-favored Ds+ modes π+η, π+η′, and K+KS0, and obtain ratios of branching fractions: B(Ds+→K+η)/B(Ds+→π+η) =(8.9±1.5±0.4)%, B(Ds+→K+η′)/ B(Ds+→π+η′)=(4.2±1.3±0.3)%, B(Ds+→π+KS0) /B(Ds+→K+KS0)=(8.2±0.9±0.2)%, B(Ds+→K+π0)/ B(Ds+→K+KS0)=(5.5±1.3±0.7)%, and B(Ds+→π+π0)/ B(Ds+→K+KS0)<4.1% at 90% C.L., where the uncertainties are statistical and systematic, respectively.

Original languageEnglish (US)
Article number191805
JournalPhysical Review Letters
Volume99
Issue number19
DOIs
StatePublished - Nov 9 2007

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Adams, G. S., Anderson, M., Cummings, J. P., Danko, I., Hu, D., Moziak, B., Napolitano, J., He, Q., Insler, J., Muramatsu, H., Park, C. S., Thorndike, E. H., Yang, F., Artuso, M., Blusk, S. R., Khalil, S., Li, J., Menaa, N., Mountain, R., ... Xin, B. (2007). Suppressed decays of Ds+ mesons to two pseudoscalar mesons. Physical Review Letters, 99(19), [191805]. https://doi.org/10.1103/PhysRevLett.99.191805