Study of B → X ( 3872 ) K , with X ( 3872 ) → J / ψ π + π

Study of B → X ( 3872 ) K , with X ( 3872 ) → J / ψ π + π

We present measurements of the decays B+ -> X(3872) K+ and B0 -> X(3872) K0 with X(3872) -> Jpsi pi+ pi-. The data sample used, collected with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring, corresponds to 455 x 10^6 BBbar pairs. Branching fraction measurements of BF(B...

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Veröffentlicht in:Physical review. D 2008-06, Vol.77 (11), Article 111101
Hauptverfasser: Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., 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., Jacobsen, R. G., Kadyk, J. A., Kerth, L. T., Kolomensky, Yu. G., Kukartsev, G., Lynch, G., Osipenkov, I. L., Ronan, M. T., Tackmann, K., Tanabe, T., Wenzel, W. A., Hawkes, C. M., Soni, N., 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., Buzykaev, A. R., 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., Gary, J. W., Liu, F., Long, O., Shen, B. C., Vitug, G. M., Yasin, Z., Zhang, L., Sharma, V., Campagnari, C., Hong, T. M., Kovalskyi, D., Mazur, M. A., 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., Wang, L., Wilson, M. G., Winstrom, L. O., Cheng, C. H., Doll, D. A., Echenard, B., Fang, F., Hitlin, D. G., Narsky, I.
Format: Artikel
Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:We present measurements of the decays B+ -> X(3872) K+ and B0 -> X(3872) K0 with X(3872) -> Jpsi pi+ pi-. The data sample used, collected with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring, corresponds to 455 x 10^6 BBbar pairs. Branching fraction measurements of BF(B+ -> X(3872) K+) x BF(X(3872) -> Jpsi pi+ pi-) = (8.4 +/- 1.5 +/- 0.7) x 10^{-6} and BF(B0 -> X(3872) K0) x BF(X(3872) -> Jpsi pi+ pi- = (3.5 +/- 1.9 +/- 0.4) x 10^{-6} are obtained. We set an upper limit on the natural width of the X(3872) of Gamma < 3.3 MeV/c^2 at the 90% confidence level.
ISSN:1550-7998
2470-0010
1550-2368
2470-0029
DOI:10.1103/PhysRevD.77.111101