Search for decays of B 0 mesons into e + e − , μ + μ − and e ± μ ∓ final states

We present a search for the decays B0 --> e+e-, B0 --> mu+ mu- and B0 --> e mu using data collected with the BABAR detector at the PEP-II e+e-collider at SLAC. Using a dataset corresponding to 384 x 10^6 BBbar pairs, we do not find evidence of any of the three decay modes. We obtain upper l...

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Veröffentlicht in:	Physical review. D 2008-02, Vol.77 (3), Article 032007
Hauptverfasser:	Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Garra Tico, J., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G. S., Battaglia, M., Brown, D. N., Button-Shafer, J., Cahn, R. N., Groysman, Y., Jacobsen, R. G., Kadyk, J. A., Kerth, L. T., Kolomensky, Yu. G., Kukartsev, G., Lopes Pegna, D., Lynch, G., Mir, L. M., Orimoto, T. J., Osipenkov, I. L., Ronan, M. T., Tackmann, K., Tanabe, T., Wenzel, W. A., del Amo Sanchez, P., Hawkes, C. M., Watson, A. T., Koch, H., Schroeder, T., Walker, D., Asgeirsson, D. J., Cuhadar-Donszelmann, T., Fulsom, B. G., Hearty, C., Mattison, T. S., McKenna, J. A., Barrett, M., Khan, A., Saleem, M., Teodorescu, L., Blinov, V. E., Bukin, A. D., Druzhinin, V. P., Golubev, V. B., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu, Bondioli, M., Curry, S., Eschrich, I., Kirkby, D., Lankford, A. J., Lund, P., Mandelkern, M., Martin, E. C., Stoker, D. P., Abachi, S., Buchanan, C., Foulkes, S. D., Gary, J. W., Liu, F., Long, O., Shen, B. C., Vitug, G. M., Zhang, L., Paar, H. P., Rahatlou, S., Sharma, V., Berryhill, J. W., Campagnari, C., Cunha, A., Dahmes, B., Hong, T. M., Kovalskyi, D., Richman, J. D., Beck, T. W., Eisner, A. M., Flacco, C. J., Heusch, C. A., Kroseberg, J., Lockman, W. S., Schalk, T., Schumm, B. A., Seiden, A., Wilson, M. G.
Format:	Artikel
Sprache:	eng
Schlagworte:	High Energy Physics - Experiment Physics
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Zusammenfassung:	We present a search for the decays B0 --> e+e-, B0 --> mu+ mu- and B0 --> e mu using data collected with the BABAR detector at the PEP-II e+e-collider at SLAC. Using a dataset corresponding to 384 x 10^6 BBbar pairs, we do not find evidence of any of the three decay modes. We obtain upper limit on the branching fractions, at 90% confidence level, of B(B0 --> e+e-)< 11.3 x 10^{-8}, B(B0 --> mu+ mu-) < 5.2 x 10^{-8}, and B(B0 --> e mu) < 9.2 x 10^{-8}.
ISSN:	1550-7998 2470-0010 1550-2368 2470-0029
DOI:	10.1103/PhysRevD.77.032007