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Global Electroweak Fit and Vector-Like Leptons in Light of the Cabibbo Angle Anomaly
The “Cabibbo Angle Anomaly” (CAA) originates from the disagreement between the CKM elements V$_{ud}$ and V$_{us}$ extracted from superallowed beta and kaon decays, respectively, once compared via CKM unitarity. It points towards new physics with a significance of up to 4 σ, depending on the theoreti...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP12(2020)166 http://cds.cern.ch/record/2727098 |