# Masses, lifetimes and production rates of $\Xi^-$ and $\anti-\Xi^+$ at LEP 1

Abstract : Measurements of the Xi- and anti-Xi+ masses, mass differences, lifetimes and lifetime differences are presented. The anti-Xi+ sample used is much larger than those used previously for such measurements. In addition, the Xi production rates in Z -> b anti-b and Z -> q anti-q events are compared and the position xi* of the maximum of the xi distribution in Z -> q anti-q events is measured.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00084242
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Submitted on : Thursday, July 6, 2006 - 11:33:17 AM
Last modification on : Sunday, June 26, 2022 - 11:45:58 AM

### Citation

J. Abdallah, P. Abreu, W. Adam, P. Adzic, T. Albrecht, et al.. Masses, lifetimes and production rates of $\Xi^-$ and $\anti-\Xi^+$ at LEP 1. Physics Letters B, Elsevier, 2006, 639, pp.179-191. ⟨10.1016/j.physletb.2006.06.029⟩. ⟨in2p3-00084242⟩

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