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Revised QCD effects on the Z $\to b\bar{b}$ forward-backward asymmetry
The forward-backward (FB) asymmetry of $b$ quarks in $e^+e^-$ collisions at the Z pole measured at LEP, $A_{FB}^{0,b} = 0.0992\pm0.0016$, remains today the electroweak precision observable with the largest disagreement (2.4$\sigma$) with respect to the Standard Model prediction, $(A_{FB}^{0,b})_{_{\...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2744716 |