Scattering equations, twistor-string formulas and double-soft limits in four dimensions
He, S; Liu, ZW; Wu JB(吴俊宝); Wu, JB
刊名JOURNAL OF HIGH ENERGY PHYSICS
2016
期号7
关键词Scattering Amplitudes Effective field theories Spontaneous Symmetry Breaking
DOI10.1007/JHEP07(2016)060
通讯作者吴俊宝
文章类型Article
英文摘要We 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.
关键词[WOS]TREE AMPLITUDES ; GAUGE-THEORY ; SPACE ; GRAVITY
语种英语
WOS记录号WOS:000379773100005
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260612
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
He, S,Liu, ZW,Wu JB,et al. Scattering equations, twistor-string formulas and double-soft limits in four dimensions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(7).
APA He, S,Liu, ZW,吴俊宝,&Wu, JB.(2016).Scattering equations, twistor-string formulas and double-soft limits in four dimensions.JOURNAL OF HIGH ENERGY PHYSICS(7).
MLA He, S,et al."Scattering equations, twistor-string formulas and double-soft limits in four dimensions".JOURNAL OF HIGH ENERGY PHYSICS .7(2016).
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