Isospin violation in epsilon'.
On the basis of a next-to-leading-order calculation in chiral perturbation theory, the first complete analysis of isospin breaking for direct CP violation in K0-->2 pi decays is performed. We find a destructive interference between three different sources of isospin violation in the CP violation parameter epsilon'. Within the uncertainties of large-N(c) estimates for the low-energy constants, the isospin violating correction for epsilon' is below 15%.
Cirigliano
V
V
Departament de Física Teòrica, IFIC, CSIC-Universitat de València, Edifici d'Instituts de Paterna, Apartat Correus 22085, E-46071 València, Spain.
Pich
A
A
Ecker
G
G
Neufeld
H
H