The B-o 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 Y(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 B-o and the B+ decay time difference distributions yields tau (B)o = 1.546 +/- 0.032(stat) +/- 0.022(syst) ps, tau (B+) = 1.673 +/- 0.032(stat) +/- 0.023(syst) ps, and tau (B+)/tau (Bo) = 1.082 +/- 0.026(stat) +/- 0.012(syst).

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2001). Measurement of the B0 and B+ meson lifetimes with fully reconstructed hadronic final states. PHYSICAL REVIEW LETTERS, 87(20) [10.1103/PhysRevLett.87.201803].

Measurement of the B0 and B+ meson lifetimes with fully reconstructed hadronic final states

CARPINELLI, Massimo;
2001

Abstract

The B-o 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 Y(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 B-o and the B+ decay time difference distributions yields tau (B)o = 1.546 +/- 0.032(stat) +/- 0.022(syst) ps, tau (B+) = 1.673 +/- 0.032(stat) +/- 0.023(syst) ps, and tau (B+)/tau (Bo) = 1.082 +/- 0.026(stat) +/- 0.012(syst).
Articolo in rivista - Articolo scientifico
BABAR detector
English
2001
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2001). Measurement of the B0 and B+ meson lifetimes with fully reconstructed hadronic final states. PHYSICAL REVIEW LETTERS, 87(20) [10.1103/PhysRevLett.87.201803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390062
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