Measurement of the charge asymmetry for the KS → πeν decay and test of CPT symmetry with the KLOE detector

The KLOE-2 Collaboration

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10 Citations (Scopus)

Abstract

Using 1.63 fb−1 of integrated luminosity collected by the KLOE experiment about 7 × 104KS → π±eν decays have been reconstructed. The measured value of the charge asymmetry for this decay is AS = (−4.9 ± 5.7stat ± 2.6syst) × 10−3, which is almost twice more precise than the previous KLOE result. The combination of these two measurements gives AS = (−3.8 ± 5.0stat ± 2.6syst) × 10−3 and, together with the asymmetry of the KL semileptonic decay, provides significant tests of the CPT symmetry. The obtained results are in agreement with CPT invariance.

Original languageEnglish
Article number21
Number of pages17
JournalJournal of High Energy Physics
Volume2018
Issue number9
DOIs
Publication statusPublished - 1 Sep 2018

Keywords

  • CP violation
  • e+-e- Experiments
  • Flavor physics
  • SYSTEM
  • e plus -e- Experiments
  • RULE
  • MODEL

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