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 → c̄ → l-) was obtained by DELPHI. From the BR(b → l-) LEP average, the most precise determination of the Vcb coupling constant was then extracted in the OPE approach. © 2001 Elsevier Science B.V. All rights reserved.
Measurement of the inclusive semileptonic b branching ratios and the extraction of |Vcb| at LEP
MARGONI, MARTINO
2001
Abstract
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 → c̄ → l-) was obtained by DELPHI. From the BR(b → l-) LEP average, the most precise determination of the Vcb coupling constant was then extracted in the OPE approach. © 2001 Elsevier Science B.V. All rights reserved.File in questo prodotto:
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