New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level
文献类型：期刊论文
| 作者 | 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.
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| 刊名 | PHYSICAL REVIEW LETTERS
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| 出版日期 | 2017 |
| 卷号 | 118期号:16页码:161601 |
| DOI | http://dx.doi.org/10.1103/PhysRevLett.118.161601 |
| 英文摘要 | In 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22075]  |
| 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 | 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. |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
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