Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy

doi:10.1007/JHEP02(2022)120

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	Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy
	Li, Yao ; Hang, Yan-Feng ; He, Hong-Jian ; He, Song 1,6
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2022
期号	2 页码:120
关键词	HIERARCHY UNITARITY SUPERSYMMETRY SYMMETRIES DIMENSIONS UNITY
ISSN号	1029-8479
DOI	10.1007/JHEP02(2022)120
英文摘要	We study the scattering amplitudes of massive Kaluza-Klein (KK) states of open and closed bosonic strings under toroidal compactification. We analyze the structure of vertex operators for the KK strings and derive an extended massive KLT-like relation which connects the N-point KK closed-string amplitude to the products of two KK open-string amplitudes at tree level. Taking the low energy field-theory limit of vanishing Regge slope, we derive double-copy construction formula of the N-point massive KK graviton amplitude from the sum of proper products of the corresponding KK gauge boson amplitudes. Then, using the string-based massive double-copy formula, we derive the exact tree-level four-point KK gauge boson amplitudes and KK graviton amplitudes, which fully agree with those given by the KK field-theory calculations. With these, we give an explicit prescription on constructing the exact four-point KK graviton amplitudes from the sum of proper products of the corresponding color-ordered KK gauge boson amplitudes. We further analyze the string-based double-copy construction of five-point and six-point scattering amplitudes of massive KK gauge bosons and KK gravitons.
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/311006/27850]
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.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Key Lab Particle Astrophys & Cosmol MOE, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China 3.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Key Lab Particle Astrophys & Cosmol MOE, Sch Phys & Astron, Shanghai 200240, Peoples R China 4.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 6.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 7.Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, UCAS, Hangzhou 310024, Peoples R China
推荐引用方式 GB/T 7714	Li, Yao,Hang, Yan-Feng,He, Hong-Jian,et al. Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy[J]. JOURNAL OF HIGH ENERGY PHYSICS,2022(2):120.
APA	Li, Yao,Hang, Yan-Feng,He, Hong-Jian,&He, Song.(2022).Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy.JOURNAL OF HIGH ENERGY PHYSICS(2),120.
MLA	Li, Yao,et al."Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy".JOURNAL OF HIGH ENERGY PHYSICS .2(2022):120.