强子创造算符在 Charmium-胶球光谱学中的应用
Charmonium-Glueball spectroscopy with improved hadron creation operators
AI总结：
本文改进了用于研究胶球和Charmium混合的创造算符，以更准确地采样能量本征态，识别低能谱中各态的主要组成。
摘要：
构造能够正确采样底层能量本征态的创造算符仍然是格点QCD光谱学计算中的基本第一步，特别是在谱包含不同组成态如介子、胶球、多粒子态等时。我们通过研究标量胶球和Charmium混合，使用改进的算符来解析低能谱并识别每个态在胶球稳定的质量范围内主导的组成。我们包括基于导数的介子算符结合蒸馏轮廓，以及由色磁场及其导数构建的胶球算符，这些算符保留了从连续极限中继承的角动量信息。我们评论了这些算符的优势，特别是胶球算符的构造和实现，从而识别出最轻的异旋标态为胶球主导的0++。
英文摘要：
Construction of creation operators which can properly sample the underlying energy eigenstates remains a fundamental first step in lattice QCD spectroscopy calculations, particularly when the spectrum includes states with different composition such as mesons, glueballs, multi-particle states, etc. We tackle this issue in the study of the scalar glueball and charmonium mixing, where we use improved operators for both types of states to resolve the low-lying spectrum and identify the dominant composition of each state in a mass regime where the glueball is stable. We include derivative-based meson operators combined with distillation profiles, as well as glueball operators built from the chromo-magnetic field and its derivatives which retain angular momentum information from their continuum counterparts. We comment on the advantages of these operators, particularly on the construction and implementation of the glueball ones, thanks to which we identify the lightest iso-scalar state as glueball-dominated $0^{++}$.
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。
