Direct CP, T and/or CPT violations in the K0-K0 system - Implications of the recent KTeV results on 2π decays -
Abstract
The recent results on the CP violating parameters Re(e'/e) and φ = φ00-φ+- reported by the KTeV Collaboration are analyzed with a view to constrain CP, T and CPT violations in a decay process. Combining with some relevant data compiled by the Particle Data Group, we find Re(e2-e0) = (0.85 +- 3.11)*10-4 and Im(e2-e0) = (3.2 +- 0.7)*10-4, where Re(eI) and Im(eI) represent respectively CP/CPT and CP/T violations in decay of K0 and K0 into a 2π state with isospin I.
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