x / 02 06 06 9 v 1 2 7 Ju n 20 02 A new measurement of the Ξ 0 c lifetime
نویسندگان
چکیده
Using data collected by the Fermilab experiment FOCUS, we measure the lifetime of the charmed baryon Ξc using the decay channels Ξ o c → Ξ π and Ξc → Ω K. From a combined sample of 110 ± 17 events we find τ(Ξc) = 118 +14 − 12 ± 5 fs, where the first and second errors are statistical and systematic, respectively.
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