Search for Direct CP Violation in K+-->pi+-pi+pi- Decays by NA48/2

2005/05/25 by I. Mikulec, Mikulec, I.
Computer Science · Engineering · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle accelerators and beam dynamics #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/0505081

8 pages, 2 figures, Talk given at XXXXth Rencontres de Moriond, ElectroWeak Interactions and Unified Theories, La Thuile, March 2005

arxiv created 2005/05/25 · openalex publication_date 2005/05/25 · arxiv updated 2009/12/01 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

First preliminary measurement of the direct CP-violating parameter Ag by the NA48/2 experiment at CERN SPS is presented. Using more than 1.6 billions of charged kaon decays into three charged pions, the charge asymmetry in the K+-->pi+-pi+pi- Dalitz plot slope, Ag, has been measured to Ag = (0.5 +- 3.8) x 10^-4. This result is more than an order of magnitude more precise than results of previous experiments.

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• Measurement of direct CP violation with the experiment NA48 at CERN