In this report the extraction of the eta, eta' mixing angle and of the eta' gluonium content from the R(phi) = Br(phi(1020) -> eta'gamma)/Br(phi(1020) -> eta gamma) is updated. The eta' gluonium content is estimated by fitting R(phi), together, with other decay branching ratios. The extracted parameters are: Z(G)(2) = 0.12 +/- 0.04 and phi(P) = (40.4 +/- 0.9).
DI MICCO, B. (2008). eta, eta ' mixing angle and eta ' gluonium content extraction from the KLOE R(phi) measurement. THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI, 38(2), 129-131 [10.1140/epja/i2008-10658-6].
eta, eta ' mixing angle and eta ' gluonium content extraction from the KLOE R(phi) measurement
DI MICCO, Biagio
2008-01-01
Abstract
In this report the extraction of the eta, eta' mixing angle and of the eta' gluonium content from the R(phi) = Br(phi(1020) -> eta'gamma)/Br(phi(1020) -> eta gamma) is updated. The eta' gluonium content is estimated by fitting R(phi), together, with other decay branching ratios. The extracted parameters are: Z(G)(2) = 0.12 +/- 0.04 and phi(P) = (40.4 +/- 0.9).File in questo prodotto:
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