AI 中文总结
研究单重夸克四夸克系统1S波态光谱，采用含OGE和OBE相互作用的半相对论混合夸克势模型，结合夸克交换模型评估衰变，确定光谱特性及相关态，指出部分态难解释为紧凑四夸克态，更多态有观测潜力。
AI 中文摘要
在这项工作中，我们在半相对论混合夸克势模型中对整个单重夸克四夸克系统的1S波态光谱进行了系统研究，该模型包含单胶子交换（OGE）和单玻色子交换（OBE）相互作用。此外，通过结合所得光谱，用夸克交换模型评估了衰变。发现除OGE势外，OBE势对描述光谱也起着关键作用。所有得到的态都远高于最低解离介子-介子阈值，是具有相对窄衰变宽度（约1-120 MeV）的紧凑态。实验报道的一些共振态不能解释为紧凑四夸克态，而某些态有利于特定四夸克态。更多单重夸克四夸克态有潜力在实验的某些主导衰变通道中被观测到。
英文摘要
In this work, we carry out a systematic study of the spectra of the $1S$-wave states for the whole singly-heavy tetraquark systems within a semi-relativistic hybrid quark potential model, in which both the one-gluon exchange (OGE) and one-boson exchange (OBE) interactions are included. Furthermore, the fall-apart decays are evaluated with the quark exchange model by combining the obtained spectra. It is found that besides the OGE potentials, the OBE potentials play crucial roles for describing the spectrum. All of our obtained states lie far above the lowest dissociation meson-meson threshold. They are compact states with relatively narrow fall-apart widths $\sim 1-120$~MeV. The $D_{s0}(2317)$, $D_{s1}(2460)$, $T_{b\bar{s}}(5568)$, and $T_{c\bar{s}}(2327)$ resonances reported from experiments cannot be explained as compact tetraquarks. While the $T_{\bar{c}\bar{s}0}(2870)$ and $T_{c\bar{s}0}(2900)$ favor the tetraquark states with $IJ^P=00^+$ and $10^+$, i.e. $T_{(\bar{c}\bar{s}[ud])0^+}^0(2919)$ and $T_{(cn\{\bar{s}\bar{n}\})0^+}^{1}(2922)$, respectively. More singly-heavy tetraquark states have good potentials to be observed in some of their dominant decay channels in experiments.
Comments37 pages, 6 figures
