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NA48/2 studies of rare decays
The first observation of about 2000 candidates, with a background contamination below 3%, of the rare decay $K^{\pm} \to \pi^{\pm}\pi^{0}e^+e^-$ is reported by the NA48/2 experiment. The preliminary branching ratio in the full kinematic region is obtained to be: ${\cal B}(K^{\pm} \to \pi^{\pm}\pi^{0...
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| Lenguaje: | eng |
| Publicado: |
2015
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| Acceso en línea: | https://dx.doi.org/10.1393/ncc/i2015-15132-0 http://cds.cern.ch/record/2041066 |