English

V_ud and V_us: CKM 2010 working group I summary

High Energy Physics - Experiment 2011-12-02 v1

Abstract

The present status of universality tests of the weak couplings for quarks and leptons is reviewed, with updated information for the muon lifetime and for first-row inputs in the CKM matrix. We discuss the impact of this high-precision SM test in constraining new physics models. We also discuss a precise lepton flavor-violation test from leptonic K decays and recent progress in K-Kbar mixing.

Keywords

Cite

@article{arxiv.1112.0238,
  title  = {V_ud and V_us: CKM 2010 working group I summary},
  author = {Tommaso Spadaro and Albert Young},
  journal= {arXiv preprint arXiv:1112.0238},
  year   = {2011}
}

Comments

Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010. Corresponding authors: A. Young ([email protected]) and T. Spadaro ([email protected]). 25 pages, 12 figures