标题： J^PC = 0^++ 标量介子九重态和最低质量的胶球 显示英文标题

标题： The J^PC = 0^++ scalar meson nonet and glueball of lowest mass

摘要： 对于低质量 J^{个人计算机}=0^{++}状态的证据进行了重新考虑。 我们建议将标量 f_0(980) 和 f_0(1500) 分类为 0^{++}非奇异态的成员，其混合情况与赝标量\eta ' 和\eta 相似。 称为 f_0(400-1200) 或“sigma”的宽态以及 f_0(1370) 被视为来自单一宽共振的不同信号，我们将其视为最低激发的 0^{++}胶球。 提出了支持这些假设的主要论点，并与理论预期进行了比较。 显示英文摘要

摘要： The evidence for the low mass J^{PC}=0^{++} states is reconsidered. We suggest classifying the isoscalars f_0(980) and f_0(1500) as members of the 0^{++} nonet, with a mixing rather similar to that of the pseudoscalars \eta' and \eta. The broad state called f_0(400-1200) or `sigma'' and the state f_0(1370) are considered as different signals from a single broad resonance, which we take to be the lowest-lying 0^{++} glueball. The main arguments in favor of these hypotheses are presented and compared with theoretical expectations.