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He, Song; Li, Zhenjie; Zhang, Chi
Two-loop octagons, algebraic letters and (Q)over-bar equations
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractWe 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.
2020
ISSN2470-0010
Volume101Issue:6Pages:61701
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.101.061701
Indexed BySCIE
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27126
CollectionSCI期刊论文
AffiliationChinese 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
Recommended Citation
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.
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