New formulas for amplitudes from higher-dimensional operators

doi:http://dx.doi.org/10.1007/JHEP02(2017)019

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	New formulas for amplitudes from higher-dimensional operators
	He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S; Zhang, Y; He, S (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2017
期号	2 页码:19
关键词	Scattering Amplitudes Effective Field Theories
DOI	http://dx.doi.org/10.1007/JHEP02(2017)019
英文摘要	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.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22130]
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, 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.
推荐引用方式 GB/T 7714	He, S ,He, S,Zhang, Y,et al. New formulas for amplitudes from higher-dimensional operators[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(2):19.
APA	He, S ,He, S,Zhang, Y,&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.