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Isospin violation in epsilon'

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	Cirigliano, Vincenzo; Ecker, Gerhard; Neufeld, Helmut; Pich Zardoya, Antonio Perfil
	This document is a artículoDate2003
	Este documento está disponible también en : http://hdl.handle.net/10550/42476
	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 K-0-->2pi 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, Vincenzo Ecker, Gerhard Neufeld, Helmut Pich Zardoya, Antonio 2003 Isospin violation in epsilon' Physical Review Letters 91 16 162001
	http://dx.doi.org/10.1103/PhysRevLett.91.162001