2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82430This paper has been withdrawn because the issues raised have been resolved by Cabibbo and Isidori, hep-ph/0502130.Withdrawn because the issues raised have been resolved by Cabibbo and Isidori, hep-ph/0502130Nuclear TheorySubthreshold $ππ$ interference in three-particle final statestext