发表机构
Trinity College Dublin; CERN; Bergische Universität Wuppertal; University of Bern（都柏林三一学院; 欧洲核子研究组织; 伍珀塔尔大学; 伯尔尼大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出改进的强子产生算符构造，用于粲偶素、胶球和重子谱学，扩展蒸馏轮廓框架并高效实现保留角动量信息的类胶球算符，以缓解信噪比问题。
AI 中文摘要
构造能够正确采样有限体积能谱的强子产生算符是格点QCD谱学和散射计算的基本步骤。能够在较早的时间间隔内从关联函数中获取谱信息的算符极具优势，尤其是在信噪比问题严重的情况下。我们提出了针对粲偶素、胶球和重子谱学的改进算符构造，这些构造展现了上述优势。我们工作的新颖之处包括将蒸馏轮廓框架扩展到重子和多介子计算，以及高效实现保留连续体角动量信息的类胶球算符。
英文摘要
Constructing hadron creation operators which properly sample the finite-volume energy spectrum is a fundamental step in lattice QCD spectroscopy and scattering calculations. Operators enabling access to spectrum information from correlation functions at early temporal separations are extremely advantageous, particularly when the signal-to-noise problem is severe. We present improved operator constructions for charmonium, glueball and baryon spectroscopy which exhibit these advantages. Novelties of our work include the extension of the distillation profiles framework to baryon and multi-meson calculations, as well as an efficient implementation of glueball-like operators which retain angular momentum information from the continuum.
Comments9 pages, 5 figures. Proceedings of the 43rd International Symposium on Lattice Field Theory (Lattice 2026), University of Maryland, College Park, USA, 2026
