arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1502.07276hep-ph
收藏

溷合介子

Hybrid Mesons

C. A. Meyer, E. S. Swanson

摘要:

本文综述了杂化强子的理论和实验研究现状。状态$π_1(1400)$,$π_1(1600)$,和$π_1(2015)$进行了彻底的审查,以及实验结果从GAMS,VES,Obelix,COMPASS,KEK,CLEO,水晶桶,CLAS和BNL。理论晶格结果上的胶泵光谱,绝热势,重和轻的混合物,和过渡矩阵元素进行了讨论。这些比较袋,字符串,通量管,和组分胶子模型。强和电磁衰变模型的描述和比较格点规范理论的结果。我们的结论是,虽然有很好的证据证明存在一个轻的等矢量奇异介子存在,它的确认作为一个混合介子等待发现其iso-partners。我们还得出结论,格点规范理论排除了一些混合模型,并提供了一个参考,以判断其他的成功。

英文摘要:

A review of the theoretical and experimental status of hybrid hadrons is presented. The states $π_1(1400)$, $π_1(1600)$, and $π_1(2015)$ are thoroughly reviewed, along with experimental results from GAMS, VES, Obelix, COMPASS, KEK, CLEO, Crystal Barrel, CLAS, and BNL. Theoretical lattice results on the gluelump spectrum, adiabatic potentials, heavy and light hybrids, and transition matrix elements are discussed. These are compared with bag, string, flux tube, and constituent gluon models. Strong and electromagnetic decay models are described and compared to lattice gauge theory results. We conclude that while good evidence for the existence of a light isovector exotic meson exists, its confirmation as a hybrid meson awaits discovery of its iso-partners. We also conclude that lattice gauge theory rules out a number of hybrid models and provides a reference to judge the success of others.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑