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Combined limits on the number of light neutrinos and the top mass from measurement of R=$\sigma$ ( W -> $\ell \nu$) / $\sigma$ ( Z -> $\ell \ell$)
Using the recent measurement of the ratio ofW→ℓv toZ→ℓℓ partial production cross-sections by UA1 and UA2, we derive an upper limit on the number of neutrinos and on the top quark mass, in the framework of the minimal standard model. To reduce the uncertainty on these limits, we use the most recent d...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1988
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/972654 |