Renormalon-free definition of the gluon condensate within the large-$\beta_0$ approximation
Renormalon-free definition of the gluon condensate within the large-$\beta_0$ approximation
复制标题
大$eta_0$ 近似内胶子凝聚态的无重整化定义
DOI:
10.1093/ptep/ptz100
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发表时间:
2018
影响因子:
3.5
通讯作者:
H. Takaura
中科院分区:
文献类型:
--
作者:
Hiroshi Suzuki;H. Takaura
We propose a clear definition of the gluon condensate within the large-$\beta_0$ approximation as an attempt toward a systematic argument on the gluon condensate. We define the gluon condensate such that it is free from a renormalon uncertainty, consistent with the renormalization scale independence of each term of the operator product expansion (OPE), and an identical object irrespective of observables. The renormalon uncertainty of $\mathcal{O}(\Lambda^4)$, which renders the gluon condensate ambiguous, is separated from a perturbative calculation by using a recently suggested analytic formulation. The renormalon uncertainty is absorbed into the gluon condensate in the OPE, which makes the gluon condensate free from the renormalon uncertainty. As a result, we can define the OPE in a renormalon-free way. Based on this renormalon-free OPE formula, we discuss numerical extraction of the gluon condensate using the lattice data of the energy density operator defined by the Yang–Mills gradient flow.
影响因子:
5
作者:
R. Horsley;G. Hotzel;E. M. Ilgenfritz;R. Millo;Y. Nakamura;H. Perlt;P. E. L. Rakow;G. Schierholz;A. Schiller
通讯作者:
A. Schiller
影响因子:
5.4
作者:
Robert V. Harlander;Tobias Neumann
通讯作者:
Tobias Neumann