From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the fractions of b bbar and c cbar events in hadronic Z decays. The b bbar fraction times semileptonic branching ratio is measured to be Br(b->e)xGamma_bbar/Gamma_had=0.0224 +/- 0.0016 +/- 0.0010. Assuming a b semileptonic branching ratio of 0.102 +/- 0.010 gives Gamma_bbar/Gamma_had=0.220 +/- 0.016 +/- 0.024, in good agreement with the standard model prediction of 0.217. The c cbar fraction times semileptonic branching ratio is measured to be Br(c->e)xGamma_ccbar/Gamma_had = 0.0133 +/- 0.0040 + 0.0038 -0.0031. Assuming a c semileptonic branching ratio of 0.090+/- 0.013 gives Gamma_bbar/Gamma_had=0.148 +/- 0.044 + 0.045 -0.038, in agreement wi...
In 431 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and mu...
In 431000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and muo...
A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is pre...
From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the...
From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the...
In 431 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and mu...
In 431000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and muo...
A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is pre...
From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the...
From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the...
In 431 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and mu...
In 431000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of electrons and muo...
A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is pre...