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Open Access item Isospin violation in epsilon'

Authors:Cirigliano, Vincenzo
Pich, Antonio
Ecker, Gerhard
Neufeld, Helmut
Issue Date:17-Oct-2003
Publisher:American Physical Society
Citation:Physical Review Letters 91(16): 162001 (2003)
Abstract: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→2π 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-Nc estimates for the low-energy constants, the isospin violating correction for epsilon' is below 15%.
Description:4 páginas, 1 tabla.-- PACS numbers: 12.39.Fe, 11.30.Er, 13.25.Es
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.91.162001
URI:http://hdl.handle.net/10261/33123
ISSN:0031-9007
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Appears in Collections:(IFIC) Artículos

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