UV contributions to energy of a static quark-antiquark pair in large-beta0 approximation
UV contributions to energy of a static quark-antiquark pair in large-beta0 approximation
复制标题
大β0近似中静态夸克-反夸克对能量的紫外线贡献
DOI：
10.1016/j.physletb.2019.05.049
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Yukinari Sumino
中科院分区：
文献类型：
--
作者：
Yuuki Hayashi;Yukinari Sumino
已知的静态夸克-反夸克对E tot(R)=2m极+Vqcd(R)的总能量在大Λ0近似下包含O(Λqcd3r2)和O(‾qcd3/mβ2)重正子，在取消O(Λqcd)重正子后.我们用MS‾质量m‾来计算(不含肾气子的)真正的UV部分，推广了最近提出的一种符合OPE的方法。具体地，确定r-独立部分。这一结果将有助于理解E tot(R)在具有RenorMalon减法的OPE的上下文中的性质。
The total energy of a static quark-antiquark pair E tot (r)= 2 m pole+ V QCD (r) is known to include O (Λ QCD 3 r 2) and O (Λ QCD 3/m‾ 2) renormalon uncertainties in the large-β 0 approximation, after canceling O (Λ QCD) renormalons. We compute the (renormalon-free) genuine UV part in terms of the MS‾ mass m‾, extending a recently-proposed method which conforms with OPE. In particular the r-independent part is determined. The result would help understanding the nature of E tot (r) in the context of OPE with renormalon subtraction.