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; He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
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| 出版日期 | 2016 |
| 期号 | 7页码:60 |
| 关键词 | Scattering Amplitudes Effective Field Theories Spontaneous Symmetry Breaking |
| DOI | http://dx.doi.org/10.1007/JHEP07(2016)060 |
| 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21591]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 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):60. |
| APA | He, S,Liu, ZW,Wu, JB,&He, S .(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. |
入库方式： OAI收割
来源：理论物理研究所
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