再论用短程灵敏格点量子色动力学观测量的微扰分析确定α_s（M_z）
The determination of alpha_s(M_z) from perturbative analyses of short-distance-sensitive lattice QCD observables revisited
摘要：
通过对短程敏感晶格观测量的微扰分析来确定α_s（M_Z），重新考虑了新的晶格数据，并对原来的分析进行了修改。该分析采用了两个高内在尺度的观测量log（W_11）和log（W_12），以及一个低内在尺度的观测量log（W_12/u_0^6）。我们发现使用不同的观测值提取的值之间具有良好的一致性，最终结果alpha_s（M_Z）=0.1192（11），与最近的各种非晶格测定以及HPQCD合作组织的类似但不相同的重新分析结果非常一致。两个重新分析之间的关系进行了讨论，侧重于两种方法的互补性。
英文摘要：
The determination of alpha_s(M_Z) via perturbative analyses of short-distance-sensitive lattice observables is revisited, incorporating new lattice data and performing a modified version of the original analysis. The analysis employs two high-intrinsic-scale observables, log (W_11) and log(W_12), and one lower-intrinsic-scale observable, log(W_12/u_0^6). We find good consistency among the values extracted using the different observables and a final result, alpha_s(M_Z)=0.1192(11), in excellent agreement with various recent non-lattice determinations, as well as with the results of a similar, but not identical, re-analysis by the HPQCD collaboration. The relation between the two re-analyses is discussed, focussing on the complementarity of the two approaches.
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