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Measurement of the anti-B0 and B- meson lifetimes

Buskulic, D. and Finch, Alexander (1993) Measurement of the anti-B0 and B- meson lifetimes. Physics Letters B, 307 (1-2). pp. 194-208. ISSN 0370-2693

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Abstract

The lifetimes of the and B− mesons have been measured with the ALEPH detector at LEP. Semileptonic decays of and B− mesons were partially reconstructed by identifying events containing a lepton with an associated meson. The proper time of the B meson was estimated from the measured decay length and the momentum and mass of the D-lepton system. A fit to the proper time of 77 D∗+ℓ− and 77 D0ℓ− candidates, combined with a constraint on the lifetime ratio () arising from the relative rates of observed D∗+ℓ− and D0ℓ− events, yielded the following lifetimes: .

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 64114
Deposited By: ep_importer_pure
Deposited On: 08 May 2013 14:55
Refereed?: Yes
Published?: Published
Last Modified: 20 Sep 2017 06:28
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/64114

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