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Open Access item π0–η mixing and CP violation

Authors:Ecker, Gerhard
Müller, G.
Neufeld, Helmut
Pich, Antonio
Issue Date:23-Mar-2000
Publisher:Elsevier
Citation:Physics Letters B 477(1-3): 88-92 (2000)
Abstract:We discuss $\pi^0$ -$\eta$ mixing and its implication for $\epsilon'/ \epsilon$ to next-to-leading order in the low-energy expansion. The big effect due to $\eta$-$\eta'$ mixing is shown to be largely cancelled by other contributions occurring at the same order in the chiral expansion.
Description:5 páginas.-- arXiv:hep-ph/9912264v1
Publisher version (URL):http://dx.doi.org/10.1016/S0370-2693(00)00213-6
URI:http://hdl.handle.net/10261/33215
ISSN:0370-2693
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Appears in Collections:(IFIC) Artículos

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