Author/Authors :
A. Bramon، نويسنده , , R. Escribano، نويسنده , , J.L. Lucio M.، نويسنده , , G. Pancheri، نويسنده ,
Abstract :
The ratio Φ→K+K−/K0K̄0 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 DAΦNE at the level of the per mille accuracy can clarify whether there exist any anomaly.