Global electroweak fit and vector-like leptons in light of the Cabibbo angle anomaly
Abstract 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 theoret...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2020)166 |