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arXiv · hep-ex/0202009

Precise Measurement of B Meson Lifetimes with Hadronic Decay Final States

Belle collaboration·K. Abe
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Abstract

The lifetimes of the B0bar and B- mesons are extracted from 29.1/fb of data collected with the Belle detector at the KEK B-factory. A fit to the decay length differences of neutral and charged B meson pairs, measured in events where one of the B mesons is fully reconstructed in several hadronic modes, yields tau_B0bar = 1.554 +/- 0.030(stat) +/- 0.019(syst) ps, tau_B- = 1.695 +/- 0.026(stat) +/- 0.015(syst) ps, and tau_B-/tau_B0bar = 1.091 +/- 0.023(stat) +/- 0.014(syst).

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Belle collaboration, K. Abe. 2002-03-30. Precise Measurement of B Meson Lifetimes with Hadronic Decay Final States. https://doi.org/10.1103/physrevlett.88.171801

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