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Partial wave analysis of $J/\psi \to \gamma \eta \eta$
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arxiv 1301.0053 v1 pith:SLNP3BV7 submitted 2013-01-01 hep-ex
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abstract
Based on a sample of $2.25\times 10^{8}$ $J/\psi$ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J/\psi\to\gamma\eta\eta$ was performed using the relativistic covariant tensor amplitude method. The results show that the dominant $0^{++}$ and $2^{++}$ components are from the $f_0(1710)$, $f_0(2100)$, $f_0(1500)$, $f_2'(1525)$, $f_2(1810)$ and $f_2(2340)$. The resonance parameters and branching fractions are also presented.
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Cited by 4 Pith papers
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