Qi-Fang Lü, Kai-Lei Wang, Yu-Bing Dong
Published 2019-03-12Version 1
We investigate the mass spectrum of the $ss \bar s \bar s$ tetraquark states within the relativized quark model. By solving the Schr\"{o}dinger-like equation with the relativized potential, the masses of the $S-$ and $P-$wave $ss \bar s \bar s$ tetraquarks are obtained. The screening effects are also taken into account. It is found that the newly observed resonant structure $X(2239)$ in the $e^+e^- \to K^+K^-$ process by BESIII Collaboration can be assigned as a $P-$wave $1^{--}$ $ss \bar s \bar s$ tetraquark state. Furthermore, the radiative transition of this structure is also estimated, and the 27 keV radiative decay width can provide helpful information for future experimental searches.
Comments: 6 pages, 2 figures
Masses of open charm and bottom tetraquark states in relativized quark model
Evidence for $a_0(980)$ as tetraquark from the triangle rescattering $D_s^+\to π^+π^0η$ decay
The $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$ in the relativized quark model
![QR code for arXiv:1903.05007 [hep-ph]](http://oss.arxitics.com/images/favicon.svg)