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

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 $J/\psi$ and 24.5 million $\psi (2S)$ into pairs of pseudoscalar mesons, ${\pi }^{+}{\pi }^{-}$, ${\pi }^0{\pi }^0$, $K^{+}{K}^{-}$, $K_S^0{K}_S^0$, and $\eta \eta$. Product branching fractions for the radiative decays of $J/\psi$ and $\psi (2S)$ 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 $\psi (2S)$ radiative decays the search for glueballs has been extended to masses between 2.5 GeV and 3.3 GeV.

21 pages, 14 figures, published in PRD

References in corpus (5)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• The Status of Glueballs
• High-statistics measurement of neutral-pion pair production in two-photon collisions
• High-statistics measurement of neutral-pion pair production in two-photon collisions
• Search for f_J(2220) in radiative J/psi decays

Cited by in corpus (12)

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• Enhancement of charm CP violation due to nearby resonances
• What can we learn about light-meson interactions at electron-positron colliders?
• Search for the tensor glueball
• Radiative production and decays of the exotic ${\eta }_1^{\prime }(1855)$ and its siblings
• Gravitational form factors of pions, kaons and nucleons from dispersion relations
• Likelihood analysis of the newly observed $f_0(2020)$, $f_0(2330)$, and $f_0(2470)$ in $J/\psi \to \gamma {\eta }^{\prime }{\eta }^{\prime }$ as high-lying unflavored scalar mesons
• Precise Measurement of the ${\chi }_{c0}$ Resonance Parameters and Branching Fractions of ${\chi }_{c0,c2}\to {\pi }^{+}{\pi }^{-}/K^{+}{K}^{-}$
• Study of Central Exclusive Production of ${\pi }^{+}{\pi }^{-}$, $K^{+}{K}^{-}$ and $p\bar{p}$ Pairs in Proton-Proton Collisions at $\sqrt{s}=510$ GeV with the STAR Detector at RHIC
• Observation of Charmonium $h_c$ Radiative Decays to Multiple Light Hadrons and the Tensor State $f_2(1270)$