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Prog. Theor. Phys. Vol. 68 No. 6 (1982) pp. 2120-2133
A New Scheme for η'-η-Glueball Mixing
Nobuyuki Aizawa,
Ziro Maki* and
Isao Umemura
Department of Nuclear Engineering, Kyoto University, Kyoto 606
*Research Institute for Fundamental Physics, Kyoto University, Kyoto 606
(Received July 6, 1982)
Abstract:
A new scheme for the mixing of η', η and the glueball G(1440) is presented on the basis of the QCD mass formula incorporated with the axial-anomaly. To be consistent with the phenomenology on Γ(η→2 γ), Γ(η' →2 γ) and Γ(ψ→η' γ)/ Γ(ψ→ηγ), etc. a new set of mixing angles is found, which replaces the traditional η'-η angle θ≃11° by the corresponding angle θ1 that amounts to ≃30°. The predicted G →2 γ width, Γ(G →2 γ) ≃(70 ±30)keV, may be useful to check the present scheme.
URL :
http://ptp.ipap.jp/link?PTP/68/2120/
DOI : 10.1143/PTP.68.2120
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