Production of Sigma(-) and Xi(-) measured with the DELPHI detector

被引：0
作者：
Asman, B
机构：
[1] Fysikum, University of Stockholm, Box 6730
来源：
NUCLEAR PHYSICS B | 1997年
关键词：
D O I：
10.1016/S0920-5632(97)00142-4
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The production rate of Sigma(-) in Z(0) decays is measured by DELPHI and the result is presented and compared to JETSET. Due to their long decay length, the decay of Sigma(+/-) often takes place outside the three-layered microvertex detector, which makes a direct determination of their track parameters possible. A direct measurement of the Xi(-) and <(Xi)over bar>(+) lifetimes and masses is also presented. The production rate <Xi(-) + Xi(+)>(<q(q)over bar>) in all hadronic events is measured and compared to the JETSET model as well as the production rate <Xi(-) + <(Xi)over bar>(+)>(<b(b)over bar>) in b<b(b)over bar> events.
引用
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页码：9 / 13
页数：5
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