手征分子及其电磁辐射--系统介质内计算的基础
Chiral Partners and their Electromagnetic Radiation -- Ingredients for a systematic in-medium calculation
摘要：
我们认为最低层强子的手征伙伴是强子分子，而不是三夸克或夸克-反夸克态。作为一个例子的情况下，a_1作为手性伴侣的ρ进行了讨论。Deconfinement -或作为一个前体大的介质宽度强子状态-提出作为一种自然的方式来适应的事实，即在手性恢复各自的介质光谱的手性合作伙伴必须成为退化。成分的系统和自洽的介质中的计算，特别强调矢量介子的优势，出现在最近提出的系统计数计划的介子部门，包括赝标量和矢量介子作为积极的自由度。
英文摘要：
It is argued that the chiral partners of the lowest-lying hadrons are hadronic molecules and not three-quark or quark-antiquark states, respectively. As an example the case of a_1 as the chiral partner of the rho is discussed. Deconfinement -- or as a precursor large in-medium widths for hadronic states -- is proposed as a natural way to accommodate for the fact that at chiral restoration the respective in-medium spectra of chiral partners must become degenerate. Ingredients for a systematic and self-consistent in-medium calculation are presented with special emphasis on vector-meson dominance which emerges from a recently proposed systematic counting scheme for the mesonic sector including pseudoscalar and vector mesons as active degrees of freedom.
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