粲偶素光谱和胶球混合的最佳介子算符
Optimized meson operators for charmonium spectroscopy and mixing with glueballs
摘要：
采用优化的介子算符在蒸馏框架下研究了两个重动力学夸克系综中粲偶素谱，其中重动力学夸克质量为物理粲夸克质量的一半，但晶格间距不同.最佳介子蒸馏配置文件的使用示出，以增加与基态的重叠显着，以及授予访问激发态，多个量子数，包括混合状态，具有非常小的额外成本。这些算符也用于介子-胶球混合的计算。
英文摘要：
Optimized meson operators in the distillation framework are used to study the charmonium spectrum in two ensembles with two heavy dynamical quarks at half the physical charm quark mass but different lattice spacings. The use of optimal meson distillation profiles is shown to increase the overlap with the ground state significantly, as well as grant access to excited states, for multiple quantum numbers including hybrid states with very little additional cost. These same operators are also employed for the calculation of meson-glueball mixing.
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