Four-Loop Nonplanar Cusp Anomalous Dimension in N=4 Supersymmetric Yang-Mills Theory

doi:http://dx.doi.org/10.1103/PhysRevLett.119.201601

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	Four-Loop Nonplanar Cusp Anomalous Dimension in N=4 Supersymmetric Yang-Mills Theory
	Yang, G (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Yang, G; Boels, RH (reprint author), Univ Hamburg, Inst Theoret Phys 2, Luruper Chaussee 149, D-22761 Hamburg, Germany.; Boels, RH; Huber, T (reprint author), Univ Siegen, Nat Wissensch Tech Fak, Walter Flex Str 3, D-57068 Siegen, Germany.; Huber, T
刊名	PHYSICAL REVIEW LETTERS
	2017
卷号	119 期号:20 页码:201601
DOI	http://dx.doi.org/10.1103/PhysRevLett.119.201601
英文摘要	The lightlike cusp anomalous dimension is a universal function that controls infrared divergences in quite general gauge theories. In the maximally supersymmetric Yang-Mills theory this function is fixed fully by integrability to the three-loop order. At four loops a nonplanar correction appears which we obtain for the first time from a numerical computation of the Sudakov form factor. Key ingredients are widely applicable methods to control the number-theoretic aspects of the appearing integrals. Our result shows explicitly that quadratic Casimir scaling breaks down at four loops.
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/311006/21934]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Yang, G (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Boels, RH (reprint author), Univ Hamburg, Inst Theoret Phys 2, Luruper Chaussee 149, D-22761 Hamburg, Germany.; Huber, T (reprint author), Univ Siegen, Nat Wissensch Tech Fak, Walter Flex Str 3, D-57068 Siegen, Germany.
推荐引用方式 GB/T 7714	Yang, G ,Yang, G,Boels, RH ,et al. Four-Loop Nonplanar Cusp Anomalous Dimension in N=4 Supersymmetric Yang-Mills Theory[J]. PHYSICAL REVIEW LETTERS,2017,119(20):201601.
APA	Yang, G ,Yang, G,Boels, RH ,Boels, RH,Huber, T ,&Huber, T.(2017).Four-Loop Nonplanar Cusp Anomalous Dimension in N=4 Supersymmetric Yang-Mills Theory.PHYSICAL REVIEW LETTERS,119(20),201601.
MLA	Yang, G ,et al."Four-Loop Nonplanar Cusp Anomalous Dimension in N=4 Supersymmetric Yang-Mills Theory".PHYSICAL REVIEW LETTERS 119.20(2017):201601.