Résumé
Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay KS→3π0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K0/K̄0→3π0 decays, the CP violating amplitude η000=A(KS→3π0)/ A(KL→3π0) has been found to be Re(η000)=-0.002±0.011±0.015 and Im(η000)=-0.003±0. 013±0.017. This corresponds to an upper limit on the branching fraction of Br(KS→3π0)<7.4×10-7 at 90% confidence level. The result is used to improve knowledge of Re(ε) and the CPT violating quantity Im(δ) via the Bell-Steinberger relation.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 165-176 |
| Nombre de pages | 12 |
| journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 610 |
| Numéro de publication | 3-4 |
| Les DOIs | |
| état | Publié - 24 mars 2005 |
Empreinte digitale
Examiner les sujets de recherche de « Search for CP violation in K0→3π0 decays ». Ensemble, ils forment une empreinte digitale unique.Contient cette citation
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver