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题名: A method for getting a finite alpha in the IR region from an all-order beta function
作者: Zheng, ZY ;  Zhou, GL
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2017
卷号: 77, 期号:11, 页码:802
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjc/s10052-017-5384-6
通讯作者: Zheng, ZY (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China. ;  Zheng, ZY (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
文章类型: Article
英文摘要: The analytical method of the QCD running coupling constant is extended to a model with an all-order beta function which is inspired by the famous Novikov-Shifman-Vainshtein-Zakharov beta function of N = 1 supersymmetric gauge theories. In the approach presented here, the running coupling is determined by a transcendental equation with non-elementary integral of the running scale mu. In our approach alpha(an)(0), which reads 0.30642, does not rely on any dimensional parameters. This is in accordance with results in the literature on the analytical method of the QCD running coupling constant. The new "analytically improved" running coupling constant is also compatible with the property of asymptotic freedom.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: PERTURBATION-THEORY ;  LOW ENERGIES ;  QCD ;  MODEL
项目资助者: National Nature Science Foundation of China [11275242, 11647022]
语种: 英语
WOS记录号: WOS:000416368500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21929
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Zheng, ZY,Zhou, GL. A method for getting a finite alpha in the IR region from an all-order beta function[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(11):802.
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