New Results on Kaon Decays from NA48
Rainer Wanke
Abstract
New measurements of KL and KS decays from the NA48 experiment are presented. From data taken in the year 2001, the value of the Ke3 charge asymmetry has been determined to deltaL(e) = (3.317 +- 0.070(stat) +- 0.072 (syst)) x 10-3. From a special high-intensity KS run period performed in 2000, NA48 has found a limit of 1.4 x 10-6 on the KS -> 3 pi0 branching ratio and measured the parameter eta000. The same data sample also leads to the first observation of the rare decay KS -> pi0 gamma gamma. All results are still preliminary.
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