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# Partial wave analysis of $J/ψ \to γ η η$

(1 Jan 2013)  Key: citeulike:11866392

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### Abstract

Based on a sample of $2.25× 10^8$ $J/ψ$ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J/ψ\toγηη$ 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.