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A detailed description of the analysis of the decay of neutral kaons to $\pi^+ \pi^-$ in the CPLEAR experiment

Abstract : A detailed description is given of the analysis of neutral kaons decaying to \pipi , based on the complete data sample collected with the CPLEAR experiment.Using a novel approach involving initially strangeness-tagged \kn\ and \knb ,the time-dependent decay rate asymmetry has been measured. This asymmetry, resulting from the interference between the \ks\and \kl\ decay amplitudes, has enabled both the magnitudeand phase of the CP-violation parameter, \ita , to be measured, with aprecision comparable to that of the current world average values.
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http://hal.in2p3.fr/in2p3-00009752
Contributor : Magali Damoiseaux <>
Submitted on : Thursday, January 11, 2001 - 11:19:46 AM
Last modification on : Monday, March 29, 2021 - 3:22:08 PM
Long-term archiving on: : Tuesday, June 2, 2015 - 12:02:02 PM

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  • HAL Id : in2p3-00009752, version 1

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A. Apostolakis, E. Aslanides, G. Backenstoss, P. Bargassa, O. Behnke, et al.. A detailed description of the analysis of the decay of neutral kaons to $\pi^+ \pi^-$ in the CPLEAR experiment. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2000, 18, pp.41-55. ⟨in2p3-00009752⟩

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