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  • Evidence for the decay B0 --> omega omega and search for B0 --> omega phi
    Lees, J. P; Tisserand, V; Brown, D. N; Lynch, G; McKenna, J. A; So, R. Y; Blinov, V. E; Kravchenko, E. A; Onuchin, A. P; Skovpen, Yu. I; Hong, T. M; West, C. A; Vazquez, W. Panduro; Chao, D. S; Ongmongkolkul, P; Ayad, R; Bernard, D; Bozzi, C; Fioravanti, E; Luppi, E; Santoro, V; Patteri, P; Piccolo, M; Guido, E; Patrignani, C; Robutti, E; Prasad, V; Lacker, H. M; Chen, C; Meyer, W. T; Diberder, F. Le; Stocchi, A; Wormser, G; Wright, D. M; Hutchcroft, D. E; Sacco, R; Cowan, G; Davis, C. L; Prencipe, E; Cenci, R; Cowan, R; Cheaib, R; Patel, P. M; Robertson, S. H; Simard, M; Taras, P; De Nardo, G; Onorato, G; Raven, G; Jessop, C. P; Sinev, N. B; Morandin, M; Simi, G; Bomben, M; Bonneaud, G. R; Calderini, G; Biasini, M; Carpinelli, M; Cervelli, A; Chrzaszcz, M; Forti, F; Oberhof, B; Pegna, D. Lopes; Gaspero, M; Gioi, L. Li; Buenger, C; Hartmann, T; Emery, S; Vasseur, G; Bard, D. J; Convery, M. R; Dubois-Felsmann, G. P; Ebert, M; Innes, W. R; Lindquist, B; Neal, H; Nelson, S; Snyder, A; Wagner, A. P; Ziegler, V; Purohit, M. V; Randle-Conde, A; Sekula, S. J; Bellis, M; Alam, M. S; Guttman, N; Peimer, D. R; De Mori, F; Zambito, S; Lanceri, L; Oyanguren, A; Villanueva-Perez, P; Banerjee, Sw; Bernlochner, F. U; King, G. J; Kowalewski, R; Nugent, I. M; Tasneem, N; Gershon, T. J; Band, H. R

    11/2013
    Journal Article

    Phys. Rev. D 89, 051101 (2014) We describe searches for B meson decays to the charmless vector-vector final states omega omega and omega phi with 471 x 10^6 B Bbar pairs produced in e+ e- annihilation at sqrt(s) = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator Laboratory. We measure the branching fraction B(B0 --> omega omega) = (1.2 +- 0.3 +0.3-0.2) x 10^-6, where the first uncertainty is statistical and the second is systematic, corresponding to a significance of 4.4 standard deviations. We also determine the upper limit B(B0 --> omega phi) < 0.7 x 10^-6 at 90% confidence level. These measurements provide the first evidence for the decay B0 --> omega omega, and an improvement of the upper limit for the decay B0 --> omega phi.

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