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Measurements of charged kaon semileptonic decay branching fractions $K^{\pm} \to \pi^{0} \mu^{\pm} \nu$ and $K^{\pm} \to \pi^{0} e^{\pm} \nu$ and their ratio
Measured ratios of decay rates for $\Re_{K_{e3}/K_{2\pi}}, \Re_{K_{\mu3}/K_{2\pi}}$ and $\Re_{K_{\mu3}/K_{e3}}$ are presented. These measurements are based on $K^{\pm}$ decays collected in a dedicated run in 2003 by the NA48/2 experiment at CERN. The results obtained are $\Re_{K_{e3}/K_{2\pi}} = 0.2...
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Lenguaje: | eng |
Publicado: |
2006
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1140/epjc/s10052-007-0253-3 https://dx.doi.org/10.1140/epjc/s10052-007-0454-9 http://cds.cern.ch/record/1015552 |