标题： 部分淬化的格点结果的手征性和连续性外推 显示英文标题

标题： Chiral and Continuum Extrapolation of Partially-Quenched Lattice Results

摘要： 矢量介子质量是从大量部分淬火的两味格点QCD模拟样本中提取的。 首次在一个统一框架内处理了离散化、有限体积和部分淬火效应，该框架与QCD的低能行为一致。 此分析包含了由手征有效场论所决定的主要红外行为。 由于双π衰变道不能仅用低能展开来描述，因此引入了一个高度约束的ρ介子衰变道模型。 后者对于从夸克质量区域外推格点结果至关重要，在该区域ρ是一个物理束缚态。 显示英文摘要

摘要： The vector meson mass is extracted from a large sample of partially quenched, two-flavor lattice QCD simulations. For the first time, discretisation, finite-volume and partial quenching artefacts are treated in a unified framework which is consistent with the low-energy behaviour of QCD. This analysis incorporates the leading infrared behaviour dictated by chiral effective field theory. As the two-pion decay channel cannot be described by a low-energy expansion alone, a highly-constrained model for the decay channel of the rho-meson is introduced. The latter is essential for extrapolating lattice results from the quark-mass regime where the rho is observed to be a physical bound state.