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MEASUREMENT OF THE AVERAGE LIFETIME OF B-HADRONS

Abstract:

The average lifetime of b hadrons has been measured using the L3 detector at LEP, running at √s ≈ MZ. A b-enriched sample was obtained from 432538 hadronic Z events collected in 1990 and 1991 by tagging electrons and muons from semileptonic b hadron decays. From maximum likelihood fits to the electron and muon impact parameter distributions, the average b hadron lifetime was measured to be τb = (1535 ± 35 ± 28) fs, where the first error is statistical and the second includes both the experime...

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Publication status:
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Authors


ADRIANI, O More by this author
AGUILARBENITEZ, M More by this author
ALCARAZ, J More by this author
ALOISIO, A More by this author
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Journal:
PHYSICS LETTERS B
Volume:
317
Issue:
3
Pages:
474-484
Publication date:
1993-11-11
DOI:
ISSN:
0370-2693
URN:
uuid:c6d36bf8-b3f7-4ccf-bd33-be1359a404d5
Source identifiers:
9857
Local pid:
pubs:9857

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