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Masses, lifetimes and production rates of Ξ- and over(Ξ, ̄)+ at LEP 1

par Abdallah, Jalal Mohamad J.;Alderweireld, Thomas;Bertrand, Daniel ;D'Hondt, Jorgen;De Clercq, Catherine;Lemonne, Jacques ;Pukhaeva, Nelli;Wickens, John H. ; [et al.]
Référence Physics letters. Section B, 639, 3-4, page (179-191)
Publication Publié, 2006-08

Article révisé par les pairs

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Résumé :

Measurements of the Ξ- and over(Ξ, ̄)+ masses, mass differences, lifetimes and lifetime differences are presented. The over(Ξ, ̄)+ sample used is much larger than those used previously for such measurements. In addition, the Ξ production rates in Z → b over(b, ̄) and Z → q over(q, ̄) events are compared and the position ξ* of the maximum of the ξ distribution in Z → q over(q, ̄) events is measured. © 2006 Elsevier B.V. All rights reserved.