Gluonic evanescent operators: two-loop anomalous dimensions

doi:10.1007/JHEP02(2023)039

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	Gluonic evanescent operators: two-loop anomalous dimensions
	Jin, Qingjun ; Ren, Ke 1,2; Yang, Gang 2,3,4,5,6; Yu, Rui 2,7
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	2 页码:39
关键词	MASTER INTEGRALS RENORMALIZATION REGULARIZATION AMPLITUDES REDUCTION UNITARITY MODEL JETS
ISSN号	1029-8479
DOI	10.1007/JHEP02(2023)039
英文摘要	Evanescent operators are a special class of operators that vanish in fourdimensional spacetime but are non-zero in d = 4-2 epsilon dimensions. In this paper, we continue our systematic study of the evanescent operators in the pure Yang-Mills theory and focus on their two-loop renormalization. We develop an efficient strategy to compute the two-loop divergences of form factors of high-dimensional and high-length operators by combining the d-dimensional unitarity method and the improved tensor reduction techniques. Two-loop anomalous dimensions are obtained for the dimension-10 basis in the planar YM theory, for which both the (MS) scheme and the finite-renormalization scheme are used. We verify that the two-loop anomalous dimensions are the same in these two schemes at the Wilson Fisher conformal fixed point. Our computation shows that the evanescent operators are indispensable in order to obtain the correct two-loop anomalous dimensions. This work provides a first computation of the two-loop anomalous dimensions of the complete set of dimension-10 operators. The method we use is also expected to provide an efficient strategy for the two-loop renormalization of general high-dimensional operators.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27987]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.China Acad Engn Phys, Grad Sch, 10 Xibeiwang East Rd, Beijing 100193, Peoples R China 2.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 5.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 6.Int Ctr Theoret Phys Asia Pacific, Hangzhou, Peoples R China 7.Peng Huanwu Ctr Fundamental Theory, Hefei 230026, Anhui, Peoples R China 8.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Jin, Qingjun,Ren, Ke,Yang, Gang,et al. Gluonic evanescent operators: two-loop anomalous dimensions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(2):39.
APA	Jin, Qingjun,Ren, Ke,Yang, Gang,&Yu, Rui.(2023).Gluonic evanescent operators: two-loop anomalous dimensions.JOURNAL OF HIGH ENERGY PHYSICS(2),39.
MLA	Jin, Qingjun,et al."Gluonic evanescent operators: two-loop anomalous dimensions".JOURNAL OF HIGH ENERGY PHYSICS .2(2023):39.