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题名: One loop amplitude from null string
作者: Yu, M ;  Zhang, C ;  Zhang, YZ
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2017
期号: 6, 页码:51
关键词: Scattering Amplitudes ;  Bosonic Strings ;  Conformal Field Theory
学科分类: Physics
DOI: http://dx.doi.org/10.1007/JHEP06(2017)051
通讯作者: Yu, M (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China. ;  Yu, M (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.
文章类型: Article
英文摘要: We generalize the CHY formalism to one-loop level, based on the framework of the null string theory. The null string, a tensionless string theory, produces the same results as the ones from the chiral ambitwistor string theory, with the latter believed to give a string interpretation of the CHY formalism. A key feature of our formalism is the interpretation of the modular parameters. We find that the S modular transformation invariance of the ordinary string theory does not survive in the case of the null string theory. Treating the integration over the modular parameters this way enable us to derive the n-gons scattering amplitude in field theory, thus proving the n-gons conjecture.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: ZERO TENSION LIMIT
项目资助者: National Natural Science Foundation of China [11675240] ;  Key Research Program of Frontier Sciences, CAS ;  Institute of Theoretical Physics, Chinese Academy of Sciences ;  Australian Research Council [DP140101492]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/22034
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Yu, M,Zhang, C,Zhang, YZ. One loop amplitude from null string[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(6):51.
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