Measurements of Exclusive B-hadron Lifetimes at Lep
نویسنده
چکیده
Measurements of exclusive b-hadron lifetimes at LEP are reviewed. Each LEP experiment has collected about 3.5 million hadronic Z 0 decays between 1990 and 1994. This data allows to identify a large variety of exclusive decay chains of a speciic b hadron with suitable statistics to measure lifetimes. The world averages of exclusive b hadron lifetimes have gained a precision of less than 10%. The lifetimes of the diierent B mesons are in good agreement with expectations whereas the lifetime of b baryons is shorter than expected.
منابع مشابه
Masses and Lifetimes of B Hadrons
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