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Scientists at University of Rome target high energy physics.
Energy Weekly News
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November 6, 2009
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"We update the values of the eta-eta' mixing angle and of the eta' gluonium content by fitting our measurement R-phi = BR(phi → eta gamma)/BR(phi → eta gamma) together with several vector meson radiative decays to pseudoscalars (V → P gamma), pseudoscalar mesons radiative decays to vectors (P → V gamma) and the eta' → gamma gamma, pi(0) → gamma gamma widths," scientists in Rome, Italy report.
"From the fit we extract a gluonium fraction of Z(G)(2) = 0.12 +/- 0.04, the pseudoscalar mixing angle psi(P) = (40.4 +/- 0.6)degrees and the phi ...
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