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The ratio Phi->K+K-/K0K0bar

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arxiv hep-ph/0003273 v2 pith:K7RDK2UV submitted 2000-03-28 hep-ph hep-ex

The ratio Phi->K+K-/K0K0bar

classification hep-ph hep-ex
keywords k0k0barphi-ratioaccountaccuracyanomalyclarifycompared
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The ratio Phi->K+K-/K0K0bar is discussed and its present experimental value is compared with theoretical expectations. A difference larger than two standard deviations is observed. We critically examine a number of mechanisms that could account for this discrepancy, which remains unexplained. Measurements at DAPHNE at the level of the per mille accuracy can clarify whether there exist any anomaly.

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