Measurements of the Xi(-) and (Xi) over bar (+) masses, mass differences, lifetimes and lifetime differences are presented. The (Xi) over bar (+) sample used is much larger than those used previously for such measurements. In addition, the S production rates in Z -> b (b) over bar and Z -> q (q) over bar events are compared and the position xi{*} of the maximum of the distribution in Z -> q (q) over bar events is measured.
Masses, Lifetimes and Production Rates of Xi- and anti-Xi+ at LEP 1
AMAPANE, Nicola Carlo;MIGLIORE, Ernesto;ROMERO, Alessandra;
2006-01-01
Abstract
Measurements of the Xi(-) and (Xi) over bar (+) masses, mass differences, lifetimes and lifetime differences are presented. The (Xi) over bar (+) sample used is much larger than those used previously for such measurements. In addition, the S production rates in Z -> b (b) over bar and Z -> q (q) over bar events are compared and the position xi{*} of the maximum of the distribution in Z -> q (q) over bar events is measured.
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