| Measurement of the Lambda_b^0 lifetime using semileptonic decays. (2007) | |||||||||
Abstract | |||||||||
| We report a measurement of the 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 baryon is reconstructed via the decay µX. Using 4437±329 signal candidates, we measure the lifetime to be ()=1.290(stat)(syst) ps, which is among the most precise measurements in semileptonic decays. This result is in good agreement with the world average value. | |||||||||
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