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He, S; Liu, ZW; Wu, JB
Scattering equations, twistor-string formulas and double-soft limits in four dimensions
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordScattering Amplitudes TREE AMPLITUDES Effective field theories GAUGE-THEORY Spontaneous Symmetry Breaking SPACE GRAVITY
AbstractWe study scattering equations and formulas for tree amplitudes of various theories in four dimensions, in terms of spinor helicity variables and on-shell superspace for supersymmetric theories. As originally obtained in Witten's twistor string theory and other twistor-string models, the equations can take either polynomial or rational forms, and we clarify the simple relation between them. We present new, four-dimensional formulas for all tree amplitudes in the non-linear sigma model, a special Galileon theory and the maximally supersymmetric completion of the Dirac-Born-Infeld theory. Furthermore, we apply the formulas to study various double-soft theorems in these theories, including the emissions of a pair of soft photons, fermions and scalars for super-amplitudes in super-DBI theory.
2016
Issue7Pages:60
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/JHEP07(2016)060
Indexed BySCI
Funding OrganizationSpecial Fund for Theoretical Physics from NSFC [11447613] ; Thousand Talents Plan ; NSFC Grants [11222549, 11575202] ; K. C. Wong Education Foundation
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23312
Collection理论物理所科研产出_SCI论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium
3.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
4.Chinese Acad Sci, Ctr Sci Facil, Inst High Energy Phys & Theoret Phys, 19B Yuquan Rd, Beijing 100049, Peoples R China
5.Peking Univ, Ctr High Energy Phys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
He, S,Liu, ZW,Wu, JB. Scattering equations, twistor-string formulas and double-soft limits in four dimensions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(7):60.
APA He, S,Liu, ZW,&Wu, JB.(2016).Scattering equations, twistor-string formulas and double-soft limits in four dimensions.JOURNAL OF HIGH ENERGY PHYSICS(7),60.
MLA He, S,et al."Scattering equations, twistor-string formulas and double-soft limits in four dimensions".JOURNAL OF HIGH ENERGY PHYSICS .7(2016):60.
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