论文标题
部分可观测时空混沌系统的无模型预测
RI/MOM and RI/SMOM renormalization of quark bilinear operators using overlap fermions
论文作者
论文摘要
我们使用与正则化独立动量减法（RI/MOM）或对称动量减法（RI/SMOM）作为晶格上的中间方案的载体，标量和张量重量化常数（RCS）（RCS）。 MILC和RBC/UKQCD合作的我们的规格场配置分别包括使用域墙或HISQ动作的Sea Quarks。结果表明，在适当的$ a^2p^2 $外推之后，RI/MOM和RI/SMOM可以为$ \ overline {\ textrm {ms}} $方案提供一致的重归其化常数。但是，在$ p \ sim 2 $ \时，ri/妈妈和ri/smom都遭受了非扰动效果，而扰动匹配无法消除。与海洋作用不同的结果之间的比较还表明，重新归一化常数对晶格间距明显敏感，但对量规动作中的裸量规耦合不敏感。
We present the vector, scalar and tensor renormalization constants (RCs) using overlap fermions with either regularization independent momentum subtraction (RI/MOM) or symmetric momentum subtraction (RI/SMOM) as the intermediate scheme on the lattice with lattice spacings $a$ from 0.04 fm to 0.12 fm. Our gauge field configurations from the MILC and RBC/UKQCD collaborations include sea quarks using either the domain wall or the HISQ action, respectively. The results show that RI/MOM and RI/SMOM can provide consistent renormalization constants to the $\overline{\textrm{MS}}$ scheme, after proper $a^2p^2$ extrapolations. But at $p\sim 2$\,GeV, both RI/MOM and RI/SMOM suffer from nonperturbative effects which cannot be removed by the perturbative matching. The comparison between the results with different sea actions also suggests that the renormalization constant is discernibly sensitive to the lattice spacing but not to the bare gauge coupling in the gauge action.
