One-loop Yang-Mills integrands from scattering equations

被引：13
|
作者：
Agerskov, Johannes [1 ,2 ,3 ]
Bjerrum-Bohr, N. E. J. [2 ,3 ]
Gomez, Humberto [2 ,3 ,4 ]
Lopez-Arcos, Cristhiam [5 ]
机构：
[1] Univ Copenhagen, Dept Math Sci, Univ Pk 5, DK-2100 Copenhagen, Denmark
[2] Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, Blegdamsvej 17, DK-2100 Copenhagen, Denmark
[3] Univ Copenhagen, Niels Bohr Inst, Discovery Ctr, Blegdamsvej 17, DK-2100 Copenhagen, Denmark
[4] Univ Santiago Cali, Fac Ciencias Basicas, Calle 5,62-00 Barrio Pampalinda, Cali, Valle, Colombia
[5] Inst Univ Salazar y Herrera, Grp Elect & Automatizac, Carrera 70,52-49, Medellin, Colombia
来源：
PHYSICAL REVIEW D | 2020年 / 102卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
REPRESENTATIONS; AMPLITUDES;
D O I：
10.1103/PhysRevD.102.045023
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate in the context of the scattering equations, how one-loop linear propagator integrands in gauge theories can be linked to integrands with quadratic propagators using a double forward limit. We illustrate our procedure through examples and demonstrate how the different parts of the derived quadratic integrand are consistent with cut-integrands derived from four-dimensional generalized unitarity. We also comment on applications and discuss possible further generalizations.
引用
收藏
页数：14
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