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He, S; Zhang, Y; He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
New formulas for amplitudes from higher-dimensional operators
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
语种英语
关键词Scattering Amplitudes Effective Field Theories
摘要In this paper we study tree-level amplitudes from higher-dimensional operators, including F-3 operator of gauge theory, and R-2, R-3 operators of gravity, in the Cachazo-He-Yuan formulation. As a generalization of the reduced Pfaffian in Yang-Mills theory, we find a new, gauge-invariant object that leads to gluon amplitudes with a single insertion of F-3, and gravity amplitudes by Kawai-Lewellen-Tye relations. When reduced to four dimensions for given helicities, the new object vanishes for any solution of scattering equations on which the reduced Pfaffian is non-vanishing. This intriguing behavior in four dimensions explains the vanishing of graviton helicity amplitudes produced by the Gauss-Bonnet R-2 term, and provides a scattering-equation origin of the decomposition into self-dual and anti-self-dual parts for F-3 and R-3 amplitudes.
2017
期号2页码:19
学科领域Physics
DOIhttp://dx.doi.org/10.1007/JHEP02(2017)019
项目资助者Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; NSFC [11375026] ; NSFC [11375026] ; NSFC [11375026] ; NSFC [11375026]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22130
专题理论物理所科研产出_SCI论文
通讯作者He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
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GB/T 7714
He, S,Zhang, Y,He, S ,et al. New formulas for amplitudes from higher-dimensional operators[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(2):19.
APA He, S,Zhang, Y,He, S ,&He, S .(2017).New formulas for amplitudes from higher-dimensional operators.JOURNAL OF HIGH ENERGY PHYSICS(2),19.
MLA He, S,et al."New formulas for amplitudes from higher-dimensional operators".JOURNAL OF HIGH ENERGY PHYSICS .2(2017):19.
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