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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Official URL: http://prl.aps.org/abstract/PRL/v99/i18/e182001
Related URL: http://dx.doi.org/10.1103/PhysRevLett.99.182001
Abstract
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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