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R$_{b}$ in supergravity models
We compute the supersymmetric contribution to R_{b}\equiv \Gamma (Z\to b{\bar b})/\Gamma (Z\to {\rm hadrons}) in a variety of supergravity models. We find R^{\rm susy}_b\lsim0.0004, which does not shift significantly the Standard Model prediction (R^{\rm SM}_b=0.2162 for m_t=160\GeV). An improvement...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1995
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/274760 |