The origin of the KLT relations and nonlinear relations for Yang-Mills amplitudes

被引：4
|
作者：
Barreiro, Luiz Antonio [1 ]
Medina, Ricardo [2 ]
机构：
[1] Sao Paulo State Univ, Inst Geosci & Exact Sci, UNESP, Rio Claro, Brazil
[2] Univ Fed Itajuba, Inst Matemat & Comp, BR-37500903 Itajuba, Brazil
来源：
PHYSICS LETTERS B | 2020年 / 803卷
关键词：
Graviton amplitudes; Gluon amplitudes; KLT relations;
D O I：
10.1016/j.physletb.2020.135299
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By means of a kinematic analysis of tree level graviton amplitudes we find, at least through six points, that the reason of their decomposition as a sum over products of gauge boson amplitudes is on-shell gauge invariance and unitarity. As a by-product of our analysis we find nonlinear relations obeyed by Yang-Mills amplitudes. All our results are valid for arbitrary spacetime dimensions. (C) 2020 The Author(s). Published by Elsevier B.V.
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页数：5
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