The Status of Vud

  title={The Status of Vud},
  author={J. Hardy},
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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Proceedings of the CKM2006 Workshop, to be published as a KEK report; see arXiv:hep -ph/0703165v1
  • 2006