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:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
64114
Deposited By:
Deposited On:
08 May 2013 13:55
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:27