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He, S; Schlotterer, O; He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S (reprint author), Chinese Acad Sci, UCAS, Beijing 100190, Peoples R China.
New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level
Source PublicationPHYSICAL REVIEW LETTERS
Language英语
AbstractIn this Letter, we extend the tree-level Kawai-Lewellen-Tye (KLT) and Bern-Carrasco-Johansson (BCJ) amplitude relations to loop integrands of gauge theory and gravity. By rearranging the propagators of gauge and gravity loop integrands, we propose the first manifestly gauge-and diffeomorphism-invariant formulation of their double-copy relations. The one-loop KLT formula expresses gravity integrands in terms of more basic gauge invariant building blocks for gauge-theory amplitudes, dubbed partial integrands. The latter obey a one-loop analogue of the BCJ relations, and both KLT and BCJ relations are universal to bosons and fermions in any number of spacetime dimensions and independent on the amount of supersymmetry. Also, one-loop integrands of Einstein-Yang-Mills theory are related to partial integrands of pure gauge theories.
2017
Volume118Issue:16Pages:161601
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1103/PhysRevLett.118.161601
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22075
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHe, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S (reprint author), Chinese Acad Sci, UCAS, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
He, S,Schlotterer, O,He, S ,et al. New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level[J]. PHYSICAL REVIEW LETTERS,2017,118(16):161601.
APA He, S,Schlotterer, O,He, S ,&He, S .(2017).New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level.PHYSICAL REVIEW LETTERS,118(16),161601.
MLA He, S,et al."New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level".PHYSICAL REVIEW LETTERS 118.16(2017):161601.
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