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Phenomenological evidence for the energy dependence of the η-η' mixing angle

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arxiv hep-ph/9901405 v2 pith:NFTPBDAR submitted 1999-01-25 hep-ph hep-ex

Phenomenological evidence for the energy dependence of the $\eta-\eta'$ mixing angle

classification hep-ph hep-ex
keywords eta-analysisanglemixingphenomenologicalagreementattentionconnection
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

A phenomenological analysis on various decay processes is performed using an energy-dependent $\eta-\eta'$ mixing angle scheme. Special attention is given to the radiative couplings between lowest-lying vector and pseudoscalar mesons. The agreement between our predictions and the experimental values is remarkable. This analysis opens a connection to two-angle fits in the $\eta-\eta'$ sector.

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