A new measurement of direct CP violation in two pion decays of the neutral kaon

Details A new measurement of direct CP violation in two pion decays of the neutral kaon A new measurement of direct CP violation in two pion decays of the neutral kaon

1999-09-13

arxiv.org/abs/hep-ex/9909022v1

Phys.Lett.B465:335-348,1999

Physics

High Energy Physics

High Energy Physics - Experiment

18 pages, 6 figures

Scientific paper

10.1016/S0370-2693(99)01030-8

The NA48 experiment at CERN has performed a new measurement of direct CP
violation, based on data taken in 1997 by simultaneously collecting K_L and K_S
decays into pi0pi0 and pi+pi-. The result for the CP violating parameter
Re(epsilon'/epsilon) is (18.5 +/- 4.5(stat)} +/- 5.8 (syst))x10^{-4}.

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