201. First Observation of the DecayDs+→pn¯
- Author
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D. Hu, J. Libby, L. K. Gibbons, Jonas Rademacker, K. Randrianarivony, Kamal K. Seth, A. Powell, R. Patel, D. Hertz, M. Anderson, Juliet Ritchie Patterson, D. Mohapatra, Daniel P Cronin-Hennessy, Sean A Dobbs, I. P.J. Shipsey, J. Reed, John Yelton, P. Zweber, J. Hietala, Werner Sun, J. M. Hunt, N. Lowrey, S. Blusk, J. Y. Ge, James E Wiss, B. Xin, D. Cinabro, Marina Artuso, Lei Zhang, Z. Metreveli, J. E. Duboscq, R. Mountain, R. Gray, G. Tatishvili, J. Napolitano, Peter Onyisi, R. E. Mitchell, D. L. Kreinick, W. Love, Amiran Tomaradze, S. Stroiney, D. M. Asner, Mats A Selen, A. J. Sadoff, R. Poling, T. Wilksen, S. Nisar, J. P. Cummings, E. H. Thorndike, Jonathan L. Rosner, Tomasz Skwarnicki, X. Shi, P. Rubin, Q. He, J. E. Ramirez, F. Yang, I. Danko, V. Savinov, K. Y. Gao, S. Khalil, D. Z. Besson, Sheldon Stone, B. Moziak, V. E. Kuznetsov, Li Jingyuan, D. G. Cassel, D. Riley, D. L. Hartill, G. Bonvicini, J. P. Alexander, Thomas Ferguson, J. Insler, T. Klein, J. Kandaswamy, M. Dubrovin, R. Ehrlich, B. K. Heltsley, M. E. Watkins, I. Karliner, K. W. Edwards, K. M. Ecklund, B. I. Eisenstein, H. Mahlke-Krüger, Yuichi Kubota, C. S. Park, L. Fields, N. Sultana, G. Wilkinson, H. Muramatsu, T. K. Pedlar, D. Peterson, Anders Ryd, M. R. Shepherd, A. W. Scott, B. W. Lang, D. H. Miller, S. Mehrabyan, G. S. Adams, H. Mendez, S. B. Athar, Alan D. Lopez, Hans J. Vogel, P. Naik, R. A. Briere, J. Ledoux, E. J. White, J. C. Wang, A. Lincoln, and S. W. Gray
- Subjects
Physics ,Annihilation ,Meson ,010308 nuclear & particles physics ,Branching fraction ,General Physics and Astronomy ,01 natural sciences ,Particle identification ,Particle decay ,Crystallography ,TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY ,0103 physical sciences ,Production (computer science) ,010306 general physics ,Energy (signal processing) - Abstract
Using e{sup +}e{sup -}{yields}D{sub s}*{sup -}D{sub s}{sup +} data collected near the peak D{sub s} production energy, E{sub cm}=4170 MeV, with the CLEO-c detector, we present the first observation of the decay D{sub s}{sup +}{yields}pn. We measure a branching fraction B(D{sub s}{sup +}{yields}pn)=(1.30{+-}0.36{sub -0.16}{sup +0.12})x10{sup -3}. This is the first observation of a charmed meson decaying into a baryon-antibaryon final state.
- Published
- 2008
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