The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs collected with the ALEPH detector at LEP. Assuming lepton universality, M(Z) = (91.182 +/- 0.009(exp.) +/- 0.020 (Z->b bbar)) GeV, GAMMA(Z) = (2484 +/- 17) MeV, sigma(had)0 = (41.44 +/- 0.36) nb, and GAMMA(had)/GAMMA(ll) = 21.00 +/- 0.20. The corresponding number of light neutrino species is 2.97 +/- 0.07. The forward-backward asymmetry in leptonic decays is used to determine the ratio of vector to axial-vector coupling constants of leptons: g(V)2(M(Z)2)/g(A)2(M(Z)2) = 0.0072 +/- 0.0027. Combining these results with ALEPH results on quark charge and b bbar asymmetries, and tau-polarization, sin^2( theta(W)(M^2(Z))) = 0.2312 +/- 0.0018. In th...
We report on the properties of theZ resonance from 62 500Z decays into fermion pairs collected with ...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
Based on 520000 fermion pairs accumulated during the first three years of data collection by the ALE...
Based on 520000 fermion pairs accumulated during the first three years of data collection by the ALE...
We report on the properties of the Z resonance from 62500 Z decays into fermion pairs collected with...
Based on 520 000 fermion pairs accumulated during the first three years of data collection by the AL...
We report on the properties of theZ resonance from 62 500Z decays into fermion pairs collected with ...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs co...
Based on 520000 fermion pairs accumulated during the first three years of data collection by the ALE...
Based on 520000 fermion pairs accumulated during the first three years of data collection by the ALE...
We report on the properties of the Z resonance from 62500 Z decays into fermion pairs collected with...
Based on 520 000 fermion pairs accumulated during the first three years of data collection by the AL...
We report on the properties of theZ resonance from 62 500Z decays into fermion pairs collected with ...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...
The properties of the Z resonance are measured from the analysis of 4.5 million Z decays into fermio...