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Measurement of the Lifetime of the B-c(+/-) Meson in the Semileptonic Decay Channel
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2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 102, no 9, 092001- p.Article in journal (Refereed) Published
Abstract [en]

Using approximately 1.3 fb(-1) of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the B-c(+/-) meson in the B-c(+/-)-> J/psi mu(+/-)+X final state. A simultaneous unbinned likelihood fit to the J/psi+mu invariant mass and lifetime distributions yields a signal of 881 +/- 80(stat) candidates and a lifetime measurement of tau(B-c(+/-))=0.448(-0.036)(+0.038)(stat)+/- 0.032(syst) ps.

Place, publisher, year, edition, pages
2009. Vol. 102, no 9, 092001- p.
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Physical Sciences
URN: urn:nbn:se:uu:diva-139980DOI: 10.1103/PhysRevLett.102.092001ISI: 000263911900014OAI: oai:DiVA.org:uu-139980DiVA: diva2:382666
Available from: 2011-01-03 Created: 2011-01-03 Last updated: 2011-01-03Bibliographically approved

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