Measurement of direct CP violation by the NA48 experiment at CERN
classification
✦ hep-ex
keywords
cerndirectepsilonexperimentmeasurementna48violationcollected
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The NA48 experiment at CERN has performed a measurement of direct CP violation in the neutral kaon system, based on data collected in 1997 and 1998. The preliminary result for the parameter $\Re(\epsilon^{\prime}/\epsilon)$ is $(14.0 \pm 4.3) \times 10^{-4}$.
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