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

页数：14

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