The Status of Vud

@inproceedings{Hardy2007TheSO,
  title={The Status of Vud},
  author={J. Hardy},
  year={2007}
}
The Vud element of the Cabibbo‐Kobayashi‐Maskawa matrix can be determined from several different experimental approaches: based on either 0+→0+ superallowed nuclear β decays, neutron decay, nuclear mirror decays, or pion β decay. Currently all give consistent results but, because the nuclear superallowed value has an uncertainty at least a factor of six less than all other results, it dominates any average. We present the results from all four approaches and recommended the value |Vud| = 0… Expand

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