Two-loop octagons, algebraic letters and (Q)over-bar equations
文献类型：期刊论文
| 作者 | He, Song ; Li, Zhenjie; Zhang, Chi
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:6页码:61701 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.101.061701 |
| 英文摘要 | We compute the symbol of the first two-loop amplitudes in planar N = 4 SYM with algebraic letters, the eight-point Next to Maximally Helicity Violating (NMHV) amplitude (or the dual octagon Wilson loops). We show how to apply (Q) over bar equations of [S. Caron-Huot and S. He, J. High Energy Phys. 07 (2012) 174] for computing the differential of two-loop n-point NMHV amplitudes and present the result for n = 8 explicitly. The symbol alphabet for octagon consists of 180 independent rational letters and 18 algebraic ones involving Gram-determinant square roots. We comment on all-loop predictions for final entries and aspects of the result valid for all multiplicities. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27126]  |
| 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 | Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China; Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuguan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Song,Li, Zhenjie,Zhang, Chi. Two-loop octagons, algebraic letters and (Q)over-bar equations[J]. PHYSICAL REVIEW D,2020,101(6):61701. |
| APA | He, Song,Li, Zhenjie,&Zhang, Chi.(2020).Two-loop octagons, algebraic letters and (Q)over-bar equations.PHYSICAL REVIEW D,101(6),61701. |
| MLA | He, Song,et al."Two-loop octagons, algebraic letters and (Q)over-bar equations".PHYSICAL REVIEW D 101.6(2020):61701. |
入库方式： OAI收割
来源：理论物理研究所
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