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arXiv · 0805.2614

Measurement of the lifetime of the B_c meson in the semileptonic decay channel

D0 Collaboration·V. Abazov
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Abstract

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 nu X final state. A simultaneous unbinned likelihood fit to the J/ψ+mu invariant mass and lifetime distributions yields a signal of 881 +/- 80 (stat) candidates and a lifetime measurement of τ(B_c) = 0.448 +0.038 -0.036 (stat) +/- 0.032 (syst) ps.

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D0 Collaboration, V. Abazov. 2008-05-16. Measurement of the lifetime of the B_c meson in the semileptonic decay channel. https://doi.org/10.1103/physrevlett.102.092001

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