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1998•Physical Review LettersOpen access

Observation of B+→ωK+ and Search for Related B Decays Modes

T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, D. B. MacFarlane, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, L. Zhou, S. Anderson, Y. Kubota, S. J. Lee, J. J. O’Neill, R. Poling, T. Riehle, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, D. Fujino, K. K. Gan, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. B. Spencer, M. Sung, A. Undrus, A. Wolf, M. M. Zoeller, B. Nemati, S. J. Richichi, W. R. Ross, H. Severini, P. Skubic, M. Bishai, J. Fast, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P. J. Shipsey, M. Yurko, S. Glenn, Y. Kwon, A. L. Lyon, S. Roberts, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, Xingyu Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, F. Azfar, А. Efimov, M. Goldberg, D. He, S. Köpp, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, G. H. A. Viehhauser, J. C. Wang, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, K. W. McLean, S. Márka, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, M. Chadha, S. Chan, G. Eigen, J. S. Miller, M. Śchmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, Daniel W. Bliss, G. Masek, H. P. Paar, S. Prell, V. Sharma, D. M. Asner, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, H. Nelson, T. K. Nelson, D. A. Roberts, B. H. Behrens, W. T. Ford, A. V. Gritsan, H. Krieg, J. Roy, J. G. Smith, J. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. von Dombrowski, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, B. Valant-Spaight, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, S. Patton, C. Prescott, J. Yelton, J. P. Zheng, G. Brandenburg, R. A. Briere, A. Ershov, Y. S. Gao, D. Y.-J. Kim, R. Wilson, H. Yamamoto, T. E. Browder, Y. Li, J. L. Rodriguez

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Abstract

We have searched for two-body charmless decays of $B$ mesons to purely hadronic exclusive final states including $\ensuremath{\omega}$ or $\ensuremath{\varphi}$ mesons using data collected with the CLEO II detector. With this sample of $6.6\ifmmode\times\else\texttimes\fi{}{10}^{6}B$ mesons we observe a signal for the $\ensuremath{\omega}{K}^{+}$ final state, and measure a branching fraction of $B({B}^{+}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{+})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}({1.5}_{\ensuremath{-}0.6}^{+0.7}\ifmmode\pm\else\textpm\fi{}0.2)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$. We also observe some evidence for the $\ensuremath{\varphi}{K}^{*}$ final state, and upper limits are given for 22 other decay modes. These results provide the opportunity for studies of theoretical models and physical parameters.

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We have searched for two-body charmless decays of $B$ mesons to purely hadronic exclusive final states including $\ensuremath{\omega}$ or $\ensuremath{\varphi}$ mesons using data collected with the CLEO II detector. With this sample of $6.6\ifmmode\times\else\texttimes\fi{}{10}^{6}B$ mesons we observe a signal for the $\ensuremath{\omega}{K}^{+}$ final state, and measure a branching fraction of $B({B}^{+}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{+})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}({1.5}_{\ensuremath{-}0.6}^{+0.7}\ifmmode\pm\else\textpm\fi{}0.2)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$. We also observe some evidence for the $\ensuremath{\varphi}{K}^{*}$ final state, and upper limits are given for 22 other decay modes. These results provide the opportunity for studies of theoretical models and physical parameters.

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Available abstract

We have searched for two-body charmless decays of $B$ mesons to purely hadronic exclusive final states including $\ensuremath{\omega}$ or $\ensuremath{\varphi}$ mesons using data collected with the CLEO II detector. With this sample of $6.6\ifmmode\times\else\texttimes\fi{}{10}^{6}B$ mesons we observe a signal for the $\ensuremath{\omega}{K}^{+}$ final state, and measure a branching fraction of $B({B}^{+}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{+})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}({1.5}_{\ensuremath{-}0.6}^{+0.7}\ifmmode\pm\else\textpm\fi{}0.2)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$. We also observe some evidence for the $\ensuremath{\varphi}{K}^{*}$ final state, and upper limits are given for 22 other decay modes. These results provide the opportunity for studies of theoretical models and physical parameters.

Key concepts: Physics

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