Measurement of the B 0 and B + Meson Lifetimes with Fully Reconstructed Hadronic Final States

Measurement of the B 0 and B + Meson Lifetimes with Fully Reconstructed Hadronic Final States

The B0 and B+ meson lifetimes have been measured in e+e- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the Upsilon(4S) resonance. Events are selected in which one B meson is fully reconstructed in a hadronic final state while the second B meson...

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Veröffentlicht in:Physical review letters 2001-11, Vol.87 (20), p.201803-1-201803-7, Article 201803
Hauptverfasser: Aubert, B., Boutigny, D., Gaillard, J.-M., Hicheur, A., Karyotakis, Y., Lees, J. P., Robbe, P., Tisserand, V., Palano, A., Chen, G. P., Chen, J. C., Qi, N. D., Rong, G., Wang, P., Zhu, Y. S., Eigen, G., Reinertsen, P. L., Stugu, B., Abbott, B., Abrams, G. S., Borgland, A. W., Breon, A. B., Brown, D. N., Button-Shafer, J., Cahn, R. N., Clark, A. R., Gill, M. S., Gritsan, A., Groysman, Y., Jacobsen, R. G., Kadel, R. W., Kadyk, J., Kerth, L. T., Kluth, S., Kolomensky, Yu. G., Kral, J. F., LeClerc, C., Levi, M. E., Liu, T., Lynch, G., Meyer, A. B., Momayezi, M., Oddone, P. J., Perazzo, A., Pripstein, M., Roe, N. A., Romosan, A., Ronan, M. T., Shelkov, V. G., Telnov, A. V., Wenzel, W. A., Bright-Thomas, P. G., Harrison, T. J., Hawkes, C. M., Knowles, D. J., O'Neale, S. W., Penny, R. C., Watson, A. T., Watson, N. K., Deppermann, T., Goetzen, K., Koch, H., Krug, J., Kunze, M., Lewandowski, B., Peters, K., Schmuecker, H., Steinke, M., Andress, J. C., Barlow, N. R., Bhimji, W., Chevalier, N., Clark, P. J., Cottingham, W. N., De Groot, N., Dyce, N., Foster, B., McFall, J. D., Wallom, D., Wilson, F. F., Abe, K., Hearty, C., Mattison, T. S., McKenna, J. A., Thiessen, D., Jolly, S., McKemey, A. K., Tinslay, J., Blinov, V. E., Bukin, A. D., Bukin, D. A., Buzykaev, A. R., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Kravchenko, E. A., Onuchin, A. P., Salnikov, A. A., Serednyakov, S. I., Skovpen, Yu. I.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:The B0 and B+ meson lifetimes have been measured in e+e- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the Upsilon(4S) resonance. Events are selected in which one B meson is fully reconstructed in a hadronic final state while the second B meson is reconstructed inclusively. A combined fit to the B0 and the B+ decay time difference distributions yields tau_{B0} = 1.546 +/- 0.032 (stat) +/- 0.022(syst) ps, tau_{B+} = 1.673 +/- 0.032 (stat) +/- 0.023 (syst) ps and tau_{B+} / tau_{B0} = 1.082 +/- 0.026 (stat) +/- 0.012 (syst)
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.201803