Revisiting the topic of determining fraction of glueball component in $f_0$ mesons via radiative decays of $J/\psi$

16 Mar 2020 Guo Xing-Dao Ke Hong-Wei Zhao Ming-Gang Tang Liang Li Xue-Qian

The QCD theory predicts existence of glueballs, but so far all experimental endeavor fails to identify any of such states. To remedy the obvious discrepancy between the QCD which is proved to be a successful theory for strong interaction and the failure of experimentally searching for glueballs, one is tempted to accept the most favorable interpretation that the glueballs mix with regular $q\bar q$ states of the same quantum numbers... (read more)

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