X(2370)作为赝标胶球：来自组分方法的另一个线索
X(2370) as the pseudoscalar glueball: Another clue from a constituent approach
- Université de Mons（蒙斯大学）
- Haute Ecole Louvain en Hainaut（瓦隆-布拉班特鲁汶高等学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
该研究采用组分方法，构建衰变宽度与质量线性关联的模型，发现X(2370)的质量与衰变宽度符合组分方法结果，还指出f₂(2150)和f₂(2300)是有前景的张量胶球候选体。
AI中文摘要：
赝标态X(2370)是目前实验上已确认的最清晰的胶球候选体。从唯象学角度看，组分方法（将最轻的胶球建模为两个横向组分胶子通过伴随通量管连接的束缚态）与淬火格点QCD纯规范谱吻合良好。基于胶球或轻味中性介子的总衰变宽度与通量管储存能量成正比的假设，构建了一个将强子衰变宽度与其质量线性关联的模型。该模型首先拟合轻味中性介子，随后扩展至胶球。X(2370)的质量与衰变宽度均与组分方法的结果相符。还综述了标量和张量道的其他实验胶球候选体，以展示该方法识别胶球的能力：f₂(2150)和f₂(2300)态是有前景的张量胶球候选体。
英文摘要：
The pseudoscalar state X(2370) is the clearest glueball candidate experimentally identified so far. From a phenomenological point of view, constituent approaches, in which the lightest glueballs are modelled as bound states of two transverse constituent gluons linked by an adjoint flux tube, reach a good agreement with quenched lattice QCD pure gauge spectrum. Based on the assumption that the total decay width of glueballs or light unflavoured mesons is proportional to the energy stored in the flux tube, a model is developed that linearly correlates the hadron decay width to its mass. The model is first fitted on light unflavoured mesons and then extended to glueballs. Both the mass and decay width of the X(2370) are compatible with the results of the constituent approach. Other experimental glueball candidates in the scalar and tensor channels are also reviewed to show the ability of the developed approach to identify glueballs: The f$_2$(2150) and f$_2$(2300) states appear as promising tensor glueball candidates.
