Johan Bijnens, Fredrik Borg
Isospin Breaking in K > 3 Pi Decays I: Strong
Isospin Breaking
Nucl.Phys. B697 (2004) 319342
Abstract
The CP conserving amplitudes for the decays $K\to3\pi$ are
calculated in Chiral Perturbation Theory. The calculation
is made at the nexttoleading order including strong and
local electromagnetic isospin breaking. A comparison is
made between the squared amplitudes with and without
isospin violation to estimate the size of the effect. We
find corrections of order five percent in the
amplitudes.
LU TP 0420, hepph/0405025
