Wigner-Cusp in Kaon Decays and Determination of pi pi Scattering Lengths
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- In the last few years it has become possible to study low energy pi pi scattering in kaon decays to three pions, thanks to the high statistics measurement of K+- -> pi+- pi0 pi0 decays performed by the NA48/2 experiment at the CERN SPS. At the pi+ pi- threshold, the pi0 pi0 mass spectrum exhibits a Wigner-cusp, from which the S-wave pi pi scattering lengths are extracted with high precision. This measurement is complementary to the extraction of the scattering lengths from K_e4 decays, which is also performed by the NA48/2 experiment.
- Autoren
- Rainer Wanke
- Autoren-URL
- http://arxiv.org/abs/0712.0544v2
- Zeitschrift
- ECONFC
- Schlüsselwörter
- hep-ex
- hep-ex
- Notes
- 10 pages, proceedings of plenary talk at MENU 2007, FZ Juelich, Sep 2007 (final version after referee's comments)
- Paginierung
- 103
- Datum der Veröffentlichung
- 2007
- Datum der Datenerfassung
- 2007
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2007
- Titel
- Wigner-Cusp in Kaon Decays and Determination of pi pi Scattering Lengths
- Ausgabe der Zeitschrift
- 070910
Files
0712.0544v2.pdf
Data source: arXiv
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