论文标题
各种离散费用动作之间的距离
Distance between various discretized fermion actions
论文作者
论文摘要
我们提出领先顺序混合效应$δ_ {\ rm mix} \ equiv m_ {π，{\ rm vs}}^2- \ frac {m_ {π，{\ rm vv}}}^2+m_在[0.04,0.19] $ 〜fm中，使用各种海上的晶格间距范围$ a \使用各种海效动作对量规合奏的操作。结果表明，$δ_{\ rm mix} $作为带有动力学手性海洋费米子（例如域壁或HISQ费米子）在仪表集合上的晶格间距的第四阶降低。当合奏中使用了明确的手性对称性破裂的三叶草海效动作时，无论使用的价效法动作如何，$δ_{\ rm mix} $都可能更大。
We present the leading order mixed-action effect $Δ_{\rm mix}\equiv m_{π,{\rm vs}}^2-\frac{m_{π,{\rm vv}}^2+m_{π,{\rm ss}}^2}{2}$ using HISQ, clover or overlap valence fermion actions on gauge ensembles using various sea fermion actions across a widely-used lattice spacing range $a\in [0.04,0.19]$~fm. The results suggest that $Δ_{\rm mix}$ decreases as the fourth order of the lattice spacing on the gauge ensembles with dynamical chiral sea fermions, such as Domain wall or HISQ fermions. When a clover sea fermion action which has explicit chiral symmetry breaking is used in the ensemble, $Δ_{\rm mix}$ can be much larger regardless of the valence fermion action used.
