Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron

doi:10.1007/JHEP07(2023)212

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	Emergent unitarity, all-loop cuts and integrations from the ABJM amplituhedron
	He, Song 1,2,3; Kuo, Chia-Kai ; Li, Zhenjie 6; 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.