Evidence for the decay B0 --> omega omega and search for B0 --> omega phi

Evidence for the decay B0 --> omega omega and search for B0 --> omega phi

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 Acceler...

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Hauptverfasser: 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
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Sprache:eng
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Physics - High Energy Physics - Experiment
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Zusammenfassung: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.
DOI:10.48550/arxiv.1312.0056