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Measurement of the B0s Lifetime in the Exclusive Decay Channel B0s ! J=

DO Collaboration, The and Bertram, Iain A. and Borissov, Guennadi V. and Ratoff, Peter N. and Sopczak, Andre (2005) Measurement of the B0s Lifetime in the Exclusive Decay Channel B0s ! J=. Physical Review Letters, 94 (4). 042001. ISSN 1079-7114

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Abstract

Using the exclusive decay BJ/(µ+µ-)(K+K-), we report the most precise single measurement of the B lifetime. The data sample corresponds to an integrated luminosity of approximately 220 pb-1 collected with the D0 detector at the Fermilab Tevatron Collider in 2002–2004. We reconstruct 337 signal candidates, from which we extract the B lifetime, (B)=1.444(stat)±0.020(sys) ps. We also report a measurement for the lifetime of the B0 meson using the exclusive decay B0J/(µ+µ-)K*0(892)(K+-). We reconstruct 1370 signal candidates, obtaining (B0)=1.473(stat)±0.023(sys) ps, and the ratio of lifetimes, (B)/(B0)=0.980(stat)±0.003(sys).

Item Type: Article
Journal or Publication Title: Physical Review Letters
Additional Information: Author list is partial - see original article for full author list.
Uncontrolled Keywords: B mesons ; meson hadronic decay
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 10063
Deposited By: Ms Margaret Calder
Deposited On: 01 Jul 2008 14:26
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 14:43
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10063

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