非零动量的宇称展开变分分析
Parity-expanded variational analysis for non-zero momentum
摘要：
近年来，变分分析技术在格点量子色动力学中的应用已成功地应用于许多强子的静止质量谱的研究。然而，由于宇称混合，更多的注意力必须采取调查的助推状态，以确保由变分分析提供的投影关联函数对应于相同的状态在零动量。在本文中，我们提出了宇称扩展变分分析（PEVA）技术，一种新的方法，确保成功和一致的隔离助推重子通过宇称扩展用于构建相关矩阵的运营商基础。
英文摘要：
In recent years, the use of variational analysis techniques in lattice QCD has been demonstrated to be successful in the investigation of the rest-mass spectrum of many hadrons. However, due to parity-mixing, more care must be taken for investigations of boosted states to ensure that the projected correlation functions provided by the variational analysis correspond to the same states at zero momentum. In this paper we present the Parity-Expanded Variational Analysis (PEVA) technique, a novel method for ensuring the successful and consistent isolation of boosted baryons through a parity expansion of the operator basis used to construct the correlation matrix.
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