Measurement of the $Λ_{c}^{+}$ Lifetime

12 March 2001

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 86 (11) , 2232-2236
https://doi.org/10.1103/physrevlett.86.2232

Abstract

The

Λ_{c}^{+}

lifetime is measured using

9.0 {fb}^{- 1}

e^{+} e^{-}

annihilation data collected on or just below the

ϒ (4 S)

resonance with the CLEO II.V detector at CESR. Using an unbinned maximum likelihood fit, the

Λ_{c}^{+}

lifetime is measured to be

179.6 \pm 6.9 (stat) \pm 4.4 (syst) fs

. The precision of this colliding beam measurement is comparable to other measurements, which are based on fixed-target experiments, with different systematic uncertainties.

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Version 1, 2000-11-15, ArXiv

This publication has 10 references indexed in Scilit:

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Measurement of theΛc+Lifetime

Abstract

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Measurement of the $Λ_{c}^{+}$ Lifetime