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First observation and study of the $K^{\pm} \rightarrow \pi^{\pm} \pi^0 e^+ e^-$ decay with the NA48/2 experiment at CERN

The first observation of the rare decay $K^{\pm} \rightarrow \pi^{\pm} \pi^0 e^+ e^-$  is reported by the NA48/2 experiment at CERN, based on 4919 candidates with 4.9% background contamination. From the analysis of 1.7 × 10$^{11}$ kaon decays collected in 2003–2004, the branching ratio in the full k...

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Detalles Bibliográficos
Autor principal: Bloch-Devaux, B
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/1526/1/012004
http://cds.cern.ch/record/2746015