论文标题
现代介子光谱学：单位性的基本作用
Modern meson spectroscopy: the fundamental role of unitarity
论文作者
论文摘要
综述了$ s $ - 马trix Unitarity在现实的介子光谱中的重要性，包括其历史发展和最新的应用。首先，在弹性和非弹性情况下，都证明了施加$ s $ -matrix Unitarity对介子共振的影响。然后，重新审视了静态夸克模型，并突出显示其理论和现象学缺点。在粒子数据组表中的介体中介绍了一个详细的帐户，该介体在将介体描述为纯夸克 - 易夸克结合状态的模型中根本无法解释或仅仅解释。接下来，将重新审视最早的单位化和耦合通道模型，然后是几个令人困惑的介子共鸣及其在现代单位化框架中的理解的例子。此外，总结了此类介子的最新且完全未造成的晶格描述。最后，将注意力集中在生产过程中，这需要一种非常规但相关的统一方法。讨论了进一步改进的建议。
The importance of $S$-matrix unitarity in realistic meson spectroscopy is reviewed, both its historical development and more recent applications. First the effects of imposing $S$-matrix unitarity on meson resonances is demonstrated in both the elastic and the inelastic case. Then, the static quark model is revisited and its theoretical as well as phenomenological shortcomings are highlighted. A detailed account is presented of the mesons in the tables of the Particle Data Group that cannot be explained at all or only poorly in models describing mesons as pure quark-antiquark bound states. Next the earliest unitarised and coupled-channel models are revisited, followed by several examples of puzzling meson resonances and their understanding in a modern unitarised framework. Also, recent and fully unquenched lattice descriptions of such mesons are summarised. Finally, attention is paid to production processes, which require an unconventional yet related unitary approach. Proposals for further improvement are discussed.
