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Measurements of Z-boson resonance parameters in e+e- annihilation
- Publication Year :
- 1989
- Publisher :
- American Physical Society, 1989.
-
Abstract
- We have measured the mass of the Z boson to be 91.14±0.12 GeV/c^2, and its width to be 2.42-0.35+0.45 GeV. If we constrain the visible width to its standard-model value, we find the partial width to invisible decay modes to be 0.46±0.10 GeV, corresponding to 2.8±0.6 neutrino species, with a 95%-confidence-level upper limit of 3.9.
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.od........38..ab49d40085f79f24eb07b9af7543e4b1