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Measurement of the B hadron lifetime

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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  • ALEPH Collaboration
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<mark>Journal publication date</mark>1991
<mark>Journal</mark>Physics Letters B
Issue number3-4
Volume257
Number of pages13
Pages (from-to)492-504
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The average lifetime of B hadrons has been measured by the ALEPH experiment at LEP. Events containing B hadrons are selected by the identification of leptons with high transverse momentum in hadronic Z decays, and the lifetime is extracted from a fit to the impact parameter distribution of the lepton tracks. From a sample of 1.7×105 hadronic Z decays a lifetime of 1.29±0.06±0.10 ps is measured.