# Measurement of the B$^0$ and B$^+$ meson lifetimes with fully reconstructed hadronic final states

Abstract : 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)
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00010648
Contributor : Hélène Kerec <>
Submitted on : Friday, November 23, 2001 - 4:26:44 PM
Last modification on : Wednesday, January 6, 2021 - 6:22:02 PM
Long-term archiving on: : Tuesday, June 2, 2015 - 12:10:54 PM

### Identifiers

• HAL Id : in2p3-00010648, version 1

### Citation

B. Aubert, D. Boutigny, J.M. Gaillard, A. Hicheur, Y. Karyotakis, et al.. Measurement of the B$^0$ and B$^+$ meson lifetimes with fully reconstructed hadronic final states. Physical Review Letters, American Physical Society, 2001, 87, pp.201803-1-201803-7. ⟨in2p3-00010648⟩

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