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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:	Particle Physics - Experiment
Acceso en línea:	https://dx.doi.org/10.1088/1742-6596/1526/1/012004 http://cds.cern.ch/record/2746015

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