Perfecting one-loop BCJ numerators in SYM and supergravity

doi:10.1007/JHEP02(2023)164

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	Perfecting one-loop BCJ numerators in SYM and supergravity
	Edison, Alex 1,2; He, Song 3,4,5; Johansson, Henrik 1,2,6,7; Schlotterer, Oliver 1,2; Teng, Fei 2,8; Zhang, Yong 9
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	2 页码:164
关键词	TREE AMPLITUDES YANG-MILLS RENORMALIZATION SUPERSYMMETRY UNITARITY ANOMALIES
ISSN号	1029-8479
DOI	10.1007/JHEP02(2023)164
英文摘要	We take a major step towards computing D-dimensional one-loop amplitudes in general gauge theories, compatible with the principles of unitarity and the color-kinematics duality. For n-point amplitudes with either supersymmetry multiplets or generic non-supersymmetric matter in the loop, simple all-multiplicity expressions are obtained for the maximal cuts of kinematic numerators of n-gon diagrams. At n = 6, 7 points with maximal supersymmetry, we extend the cubic-diagram numerators to encode all contact terms, and thus solve the long-standing problem of simultaneously realizing the following properties: color-kinematics duality, manifest locality, optimal power counting of loop momenta, quadratic rather than linearized Feynman propagators, compatibility with double copy as well as all graph symmetries. Color-kinematics dual representations with similar properties are presented in the half-maximally supersymmetric case at n = 4, 5 points. The resulting gauge-theory integrands and their supergravity counterparts obtained from the double copy are checked to reproduce the expected ultraviolet divergences.
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/311006/28047]
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.Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA 2.Uppsala Univ, Dept Phys & Astron, Box 516, S-75120 Uppsala, Sweden 3.Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 6.UCAS, ICTP AP, Hangzhou 310024, Peoples R China 7.Stockholm Univ, Nordita, Hannes Alfvens vag 12, S-10691 Stockholm, Sweden 8.KTH Royal Inst Technol, Hannes Alfvens vag 12, S-10691 Stockholm, Sweden 9.Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA 10.Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada
推荐引用方式 GB/T 7714	Edison, Alex,He, Song,Johansson, Henrik,et al. Perfecting one-loop BCJ numerators in SYM and supergravity[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(2):164.
APA	Edison, Alex,He, Song,Johansson, Henrik,Schlotterer, Oliver,Teng, Fei,&Zhang, Yong.(2023).Perfecting one-loop BCJ numerators in SYM and supergravity.JOURNAL OF HIGH ENERGY PHYSICS(2),164.
MLA	Edison, Alex,et al."Perfecting one-loop BCJ numerators in SYM and supergravity".JOURNAL OF HIGH ENERGY PHYSICS .2(2023):164.