A measurement of the b baryon lifetime

, ALEPH Collaboration (1992) A measurement of the b baryon lifetime. Physics Letters B, 297 (3-4). pp. 449-458. ISSN 0370-2693

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Abstract

In 451 000 hadronic Z0 decays, recorded with the ALEPH detector at LEP, the yields of Λℓ− and Λℓ+ combinations are measured. Semileptonic decays of b baryons result in a signal of 122± 18 (stat.)−23+22 (syst.) Λℓ− combinations. From a fit to the impact parameter distributions of the leptons in the Λℓ− sample, the lifetime of b baryons is measured to be 1.12−0.29+0.32 (stat.) ±0.16 (syst.) ps.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
64122
Deposited By:
Deposited On:
07 May 2013 13:58
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 02:23