论文标题
迈向强子共振理论
Towards a theory of hadron resonances
论文作者
论文摘要
在这篇综述中，我们介绍了对激发频谱强烈相互作用粒子的理解的当前现状，并讨论了允许对强子光谱进行系统和模型独立计算的方法。这些是晶格QCD和有效的现场理论。可以利用这两种方法之间的协同作用，从而可以更深入地了解强子光谱。提出和讨论了基于晶格QCD中有效的现场理论和强子 - 二重散射的结果。我们还表明，经常使用的Breit-Wigner参数化与手性对称性矛盾，在强烈耦合的通道中不应使用。
In this review, we present the current state of the art of our understanding of the spectrum of excited strongly interacting particles and discuss methods that allow for a systematic and model-independent calculation of the hadron spectrum. These are lattice QCD and effective field theories. Synergies between both approaches can be exploited allowing for deeper understanding of the hadron spectrum. Results based on effective field theories and hadron-hadron scattering in lattice QCD or combinations thereof are presented and discussed. We also show that the often used Breit-Wigner parameterization is at odds with chiral symmetry and should not be used in case of strongly coupled channels.
