Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron | |
He, Song1,2,3; Kuo, Chia-Kai; Li, Zhenjie6; Zhang, Yao-Qi | |
刊名 | JOURNAL OF HIGH ENERGY PHYSICS |
2023 | |
期号 | 7页码:212 |
ISSN号 | 1029-8479 |
DOI | 10.1007/JHEP07(2023)212 |
英文摘要 | We elaborate on aspects of a new positive geometry proposed recently, which was conjectured to be the four-point amplituhedron for ABJM theory. We study generalized unitarity cuts from the geometry, and in particular we prove that (1) the four-point integrand satisfies perturbative unitarity (or optical theorem) to all loops, which follows directly from the geometry, and (2) vanishing cuts involving odd-point amplitudes follow from the bipartite nature of the associated negative geometries, which justifies their appearance in ABJM theory. We also take a first step in integrating the forms of these negative geometries and obtain an infrared-finite quantity up to two loops, from which we extract the cusp anomalous dimension at leading order. |
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/311006/27971] |
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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 3.ICTP AP Int Ctr Theoret Phys Asia Pacific, Beijing 100190, Peoples R China 4.Peng Huanwu Ctr Fundamental Theory, Hefei 230026, Anhui, Peoples R China 5.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan 6.Natl Ctr Theoret Sci, Phys Div, Taipei 10617, Taiwan 7.Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94309 USA 8.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | He, Song,Kuo, Chia-Kai,Li, Zhenjie,et al. Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(7):212. |
APA | He, Song,Kuo, Chia-Kai,Li, Zhenjie,&Zhang, Yao-Qi.(2023).Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron.JOURNAL OF HIGH ENERGY PHYSICS(7),212. |
MLA | He, Song,et al."Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron".JOURNAL OF HIGH ENERGY PHYSICS .7(2023):212. |
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