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arXiv · 1502.01686

A Comprehensive Study of the Radiative Decays of $J/ψ$ and $ψ(2S)$ to Pseudoscalar Meson Pairs, and Search for Glueballs

S. Dobbs·A. Tomaradze·T. Xiao·Kamal K. Seth
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Abstract

Using 53 pb$^{-1}$ of $e^+e^-$ annihilation data taken at $\sqrt{s}=3.686$ GeV, a comprehensive study has been made of the radiative decays of samples of 5.1 million $J/ψ$ and 24.5 million $ψ(2S)$ into pairs of pseudoscalar mesons, $π^+π^-$, $π^0π^0$, $K^+K^-$, $K_S^0K_S^0$, and $ηη$. Product branching fractions for the radiative decays of $J/ψ$ and $ψ(2S)$ to scalar resonances $f_0(1370,1500,1710,2100, \text{and} 2200)$, and tensor resonances $f_2(1270,1525, \text{and} 2230)$ have been determined, and are discussed in relation to predicted glueballs. For $ψ(2S)$ radiative decays the search for glueballs has been extended to masses between 2.5 GeV and 3.3 GeV.

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S. Dobbs, A. Tomaradze, T. Xiao, Kamal K. Seth. 2015-02-11. A Comprehensive Study of the Radiative Decays of $J/ψ$ and $ψ(2S)$ to Pseudoscalar Meson Pairs, and Search for Glueballs. https://doi.org/10.1103/physrevd.91.052006

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