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Evidence for b baryons in Z decays

Decamp, D. and Finch, Alexander (1992) Evidence for b baryons in Z decays. Physics Letters B, 278 (1-2). pp. 209-216. ISSN 0370-2693

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Abstract

In 160 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Λℓ− and Λℓ+ combinations have been measured. The observed excess of Λℓ− over Λℓ+ of 53±13 is interpreted as evidence for b baryons and their semileptonic decay. Assuming that three body decay processes such as dominate the semileptonic decay of b baryons, this ex cess corresponds to a product branching ratio , where ΛbandΛc+ denote the bottom and charm baryons respectively.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63782
Deposited By: ep_importer_pure
Deposited On: 07 May 2013 15:11
Refereed?: Yes
Published?: Published
Last Modified: 20 Sep 2017 06:27
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63782

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