Measurement of the inclusive semileptonic b branching ratios and the extraction of |Vcb| at LEP

被引：0
|
作者：
Margoni, M
机构：
[1] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[2] Ist Nazl Fis Nucl, I-35131 Padua, Italy
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2001年 / 93卷
关键词：
D O I：
10.1016/S0920-5632(00)01119-1
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 inclusive direct b --> l(-) and cascade b --> c --> l(+) semileptonic branching ratios of the b quark were measured by the four LEP collaborations by means of several strategies. The first inclusive measurement of BR(b --> (c) over bar --> l(-)) was obtained by DELPHI. From the BR(b --> l(-)) LEP average, the most precise determination of the \V-cb\ coupling constant was then extracted in the OPE approach.
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页码：283 / 286
页数：4
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