Eur. Phys. J. C (2010) 67: 143-147
https://doi.org/10.1140/epjc/s10052-010-1278-6

Regular Article - Theoretical Physics

Final-state interaction in kaon decays

Joint Institute for Nuclear Research, 141980, Dubna, Russia

^* e-mail: gevs@jinr.ru

Received: 12 November 2009
Revised: 18 January 2010
Published online: 5 March 2010

Abstract

The kaons decays to pairs of charged and neutral pions are considered in the framework of the non-relativistic quantum mechanics. The general expressions for the decay amplitudes to the two different channels accounting for the strong interaction between pions are obtained. The developed approach allows one to estimate the contribution of terms of any order in strong interaction and correctly takes into account the electromagnetic interaction between the pions in the final state.