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

Abstract

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}.

18 pages, 6 figures

References in corpus (2)

• Observation of Direct CP Violation in K_{S,L} to ππDecays
• Space charge in ionization detectors and the NA48 calorimeter

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