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, M. Artuso, S. Blusk, S. Khalil, J. Li, N. Menaa, R. Mountain, S. NisarK. Randrianarivony, R. Sia, T. Skwarnicki, S. 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, Sean A Dobbs, B. K. Heltsley, Amiran Tomaradze, 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, Kamal 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

*Corresponding author for this work

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12 Scopus citations

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    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., 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