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A measurement of the b baryon lifetime

Buskulic, D. and Finch, Alexander (1992) A measurement of the b baryon lifetime. Physics Letters B, 297 (3-4). pp. 449-458. ISSN 0370-2693

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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
Departments: Faculty of Science and Technology > Physics
ID Code: 64122
Deposited By: ep_importer_pure
Deposited On: 07 May 2013 14:58
Refereed?: Yes
Published?: Published
Last Modified: 11 Apr 2018 01:01
Identification Number:

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