论文标题
完全巨大的tetrangeTrange $ ss \ bar {s} \ bar {s} $ spectrum和可能的实验证据
Fully-strange tetraquark $ss\bar{s}\bar{s}$ spectrum and possible experimental evidence
论文作者
论文摘要
In this work we construct 36 tetraquark configurations for the $1S$-, $1P$-, and $2S$-wave states, and make a prediction of the mass spectrum for the tetraquark $ss\bar{s}\bar{s}$ system in the framework of a nonrelativistic potential quark model without the diquark-antidiquark approximation.模型参数通过我们先前对Strangeonium光谱的研究很好地确定。我们发现共鸣$ f_0（2200）$和$ f_2（2340）$可能会赞成地面状态的分配$ t _ {（ss \ bar {s} \ bar {s}）0^{++}}}}}}}}}}}（2218）$ $ t _ {（ss \ bar {s} \ bar {s}）2^{++}}（2378）$，而新观察到的新观察到的$ x（2500）$ at besiii可能是最低质量$ 1P $ 0^{ - ++} $ 0^{ - ++0^{ - +0^{ - +0^{ - +）的候选人$ t _ {（ss \ bar {s} \ bar {s}）0^{ - +}}}（2481）$。其他$ 0^{++} $接地状态$ t _ {（SS \ bar {s} \ bar {s}）0^{++}}（2440）$的信号也可能在$ j/ψ\ t besiiii at besiiii中的$ j/ψ\ tocimj/ψ\ to besiiii中观察到。 $ j^{pc} = 1^{ - } $ $ t_ {ss \ bar {s} \ bar {s}} $状态的质量在$ \ sim 2.44-2.99 $ GEV范围内$ t_ {ss \ bar {s} \ bar {s}} $ state。这项研究可能会为搜索$ t_ {ss \ bar {s} \ bar {s}} $状态搜索实验中的$ t_ {ss \ bar {s} \ bar {s} \ bar {s}} $状态提供有用的指南。
In this work we construct 36 tetraquark configurations for the $1S$-, $1P$-, and $2S$-wave states, and make a prediction of the mass spectrum for the tetraquark $ss\bar{s}\bar{s}$ system in the framework of a nonrelativistic potential quark model without the diquark-antidiquark approximation. The model parameters are well determined by our previous study of the strangeonium spectrum. We find that the resonances $f_0(2200)$ and $f_2(2340)$ may favor the assignments of ground states $T_{(ss\bar{s}\bar{s})0^{++}}(2218)$ and $T_{(ss\bar{s}\bar{s})2^{++}}(2378)$, respectively, and the newly observed $X(2500)$ at BESIII may be a candidate of the lowest mass $1P$-wave $0^{-+}$ state $T_{(ss\bar{s}\bar{s})0^{-+}}(2481)$. Signals for the other $0^{++}$ ground state $T_{(ss\bar{s}\bar{s})0^{++}}(2440)$ may also have been observed in the $ϕϕ$ invariant mass spectrum in $J/ψ\toγϕϕ$ at BESIII. The masses of the $J^{PC}=1^{--}$ $T_{ss\bar{s}\bar{s}}$ states are predicted to be in the range of $\sim 2.44-2.99$ GeV, which indicates that the $ϕ(2170)$ resonance may not be a good candidate of the $T_{ss\bar{s}\bar{s}}$ state. This study may provide a useful guidance for searching for the $T_{ss\bar{s}\bar{s}}$ states in experiments.
