Measurement of the $Ξ_{c}^{+}$ lifetime

26 December 2001

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

Vol. 65 (3) , 031102
https://doi.org/10.1103/physrevd.65.031102

Abstract

The

Ξ_{c}^{+}

lifetime is measured using 9.0

{fb}^{- 1}

e^{+} e^{-}

annihilation data collected on and just below the

Υ (4 S)

resonance with the CLEO II.V detector at CESR. This is the first measurement of the

Ξ_{c}^{+}

lifetime from a collider experiment. Using an unbinned maximum likelihood fit, the

Ξ_{c}^{+}

lifetime is measured to be

503 \pm 47 (stat) \pm 18 (syst) fs .

The precision of this measurement is comparable to previous measurements carried out by fixed target experiments with different sources of systematic uncertainties.

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This publication has 10 references indexed in Scilit:

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Physical Review Letters, 2001
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Measurement of theΞc+lifetime

Abstract

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Measurement of the $Ξ_{c}^{+}$ lifetime