High precision study of CP-violating charge asymmetry in K+- --> 3pi+- decays

E. Goudzovski

High precision study of CP-violating charge asymmetry in K+- --> 3pi+- decays

High Energy Physics - Experiment 2007-05-23 v1

Authors: E. Goudzovski

Abstract

A precise measurement of the direct CP violating charge asymmetry parameter $A_g$ in $K^\pm\to\pi^\pm\pi^+\pi^-$ decays by the NA48/2 experiment at CERN SPS is presented. The experiment has been designed not to be limited by systematic uncertainties in the asymmetry measurement. A preliminary result for the charge asymmetry $A_g=(-1.3\pm2.3)\times 10^{-4}$ has been obtained with a sample of $3.11\times 10^9$ selected events corresponding to the full collected statistics. The precision of the result is limited by the statistics used.

Keywords

CP violation charge asymmetry K+/- to 3pi+/- NA48/2 CERN SPS

Cite

@article{arxiv.hep-ex/0604002,
  title  = {High precision study of CP-violating charge asymmetry in K+- --> 3pi+- decays},
  author = {E. Goudzovski},
  journal= {arXiv preprint arXiv:hep-ex/0604002},
  year   = {2007}
}

Comments

A talk given at "Les Rencontres de Physique de la Vallee d'Aoste 2006", La Thuile, March 2006. 14 pages, 2 figures

High precision study of CP-violating charge asymmetry in K+- --> 3pi+- decays

Abstract

Keywords

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