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Semileptonic KL Decays at NA48
Preliminary results on KL->pi e nu(gamma) decays collected by the NA48 detector at the CERN SPS are reported. Using a sample of 6.8 X 10^6 reconstructed events BR(Ke3) = 0.4010+-0.0028+-0.0035 was obtained. From the branching ratio the value of |Vus|= 0.2187+-0.0028 was extracted. The same data s...
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| Lenguaje: | eng |
| Publicado: |
2004
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| Acceso en línea: | http://cds.cern.ch/record/798119 |