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New results from NA48 experiment on neutral kaon rare decays

Andrea Bizzeti
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Abstract

Recent results by the NA48 collaboration on neutral kaons rare decays into the pi+ pi- e+ e- final state are presented. A large CP-violating asymmetry A(K_L)=(13.9+-2.7+-2.0)% has been observed in the K_L to pi+ pi- e+ e- decay. The K_S to pi+ pi- e+ e- decay has been observed for the first time, showing no such asymmetry.

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Andrea Bizzeti. 2001-02-15. New results from NA48 experiment on neutral kaon rare decays. https://arxiv.org/abs/hep-ex/0102035

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