$X1835$ and the New Resonances $X2120$ and $X2370$ Observed by the BES CollaborationReportar como inadecuado



 $X1835$ and the New Resonances $X2120$ and $X2370$ Observed by the BES Collaboration


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We calculate the decay widths of both the second and the third radial excitations of $\eta$ and $\eta$ within the framework of $^3P 0$ model. After comparing the theoretical decay widths and decay patterns with the available experimental data of $\eta1760$, $X1835$, $X2120$ and $X2370$, we find that the interpretation of $\eta1760$ and $X1835$ as the second radial excitation of $\eta$ and $\eta$ crucially depends on the measured mass and width of $\eta1760$, which is still controversial experimentally. We suggest that there may be sizable $p\bar{p}$ content in $X1835$. $X2120$ and $X2370$ can not be understood as the third radial excitations of $\eta$ and $\eta$, $X2370$ probably is a mixture of $\eta4{^1}{S}{ 0}$ and glueball.



Autor: Jia-Feng Liu; Gui-Jun Ding; Mu-Lin Yan

Fuente: https://archive.org/







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