Measurement of the Λb0 lifetime using semileptonic decays

Abazov, V. M. ; Mondal, N. K. ; et., al (2007) Measurement of the Λb0 lifetime using semileptonic decays Physical Review Letters, 99 (18). 182001_1-182001_7. ISSN 0031-9007

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We report a measurement of the Λb0 lifetime using a sample corresponding to 1.3 fb-1 of data collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. The Λb0 baryon is reconstructed via the decay Λb0→μ ν‾ Λc+X. Using 4437±329 signal candidates, we measure the Λb0 lifetime to be τ(Λb0)=1.290-0.110+0.119(stat)-0.091+0.087(syst) ps, which is among the most precise measurements in semileptonic Λb0 decays. This result is in good agreement with the world average value.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:66909
Deposited On:27 Oct 2011 11:37
Last Modified:27 Oct 2011 11:37

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