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arXiv · hep-ex/0110058

Measurement of the Xi^+_c Lifetime

CLEO Collaboration·A. H. Mahmood
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Abstract

The Xi^+_c lifetime is measured using 9.0 fb^-1 of e+e- annihilation data collected on and just below the Upsilon(4S) resonance with the CLEO II.V detector at CESR. This is the first measurement of the Xi^+_c lifetime from a collider experiment. Using an unbinned maximum likelihood fit, the Xi^+_c lifetime is measured to be 503 +/- 47 (stat.) +/- 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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CLEO Collaboration, A. H. Mahmood. 2001-11-12. Measurement of the Xi^+_c Lifetime. https://doi.org/10.1103/physrevd.65.031102

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