Study of the $f_2(1270)$, $f_2^{\prime }(1525)$, ${\bar{K}}_2^{\ast }(1430)$, $f_0(1370)$ and $f_0(1710)$ production from $\psi (nS)$ and ${\rm Y}(nS)$ decays

Abstract

Based on previous studies that support the important role of the $f_2(1270)$, $f_2^{\prime }(1525)$, and ${\bar{K}}_2^{\ast }(1430)$ resonances in the $J/\psi [\psi (2S)]\to \varphi (\omega )VV$ decays, we make an analysis of the analogous decays of ${\rm Y}(1S)$ and ${\rm Y}(2S)$, taking into account recent experimental data. In addition, we study the $J/\psi$ and $\psi (2S)$ radiative decays and we also made predictions for the radiative decay of ${\rm Y}(1S)$ and ${\rm Y}(2S)$ into $\gamma f_2(1270)$, $\gamma f_2^{\prime }(1525)$, $\gamma f_0(1370)$ and $\gamma f_0(1710)$, comparing with the recent results of a CLEO experiment. We can compare our results for ratios of decay rates with eight experimental ratios and find agreement in all but one case, where experimental problems are discussed.

Published version

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Cited by in corpus (11)

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