Scattering equations, twistor-string formulas and double-soft limits in four dimensions
文献类型：期刊论文
| 作者 | He, S; Liu, ZW; Wu JB(吴俊宝) ; Wu, JB
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2016 |
| 期号 | 7 |
| 关键词 | Scattering Amplitudes Effective field theories Spontaneous Symmetry Breaking |
| DOI | 10.1007/JHEP07(2016)060 |
| 通讯作者 | 吴俊宝 |
| 文献子类 | 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. |
| WOS关键词 | TREE AMPLITUDES ; GAUGE-THEORY ; SPACE ; GRAVITY |
| 语种 | 英语 |
| WOS记录号 | WOS:000379773100005 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/260612]  |
| 专题 | 中国科学院高能物理研究所 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 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). |
入库方式： OAI收割
来源：高能物理研究所
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