Search for CP-Violation in KS -> 3pi0 decays with the NA48 detector

Details Search for CP-Violation in KS -> 3pi0 decays with the NA48 detector Search for CP-Violation in KS -> 3pi0 decays with the NA48 detector

2003-10-13

arxiv.org/abs/hep-ph/0310152v1

Eur.Phys.J.C33:s337-339,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1140/epjcd/s2004-03-1635-2

The decay KS -> 3pi0 is forbidden by CP conservation. Using a sample of more than 6 million K -> 3pi0 decays, the NA48 Collaboration has improved the limit on eta_{000} = A(KS -> 3pi0)/A(KS -> 3pi0) and on the branching ratio Br(KS -> 3pi0) by about one order of magnitude. Using this result and the Bell-Steinberger relation, a new limit on the equality of the K0 and K0bar masses is obtained improving by about 40% the test of CPT conservation in the mixing of neutral kaons.

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