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Measurement of the inclusive semileptonic b branching ratios and the extraction of $V_{cb}$ at LEP
The inclusive direct b to l/sup -/ and cascade b to c to l/sup +/ 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 to c to l/sup -/) was obtained by DELPHI. From the BR(b to l/sup -/) LEP...
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| Lenguaje: | eng |
| Publicado: |
2001
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| Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(00)01119-1 http://cds.cern.ch/record/513284 |
| Sumario: | The inclusive direct b to l/sup -/ and cascade b to c to l/sup +/ 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 to c to l/sup -/) was obtained by DELPHI. From the BR(b to l/sup -/) LEP average, the most precise determination of the V/sub cb/ coupling constant was then extracted in the OPE approach. (7 refs). |
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