A new formulation of the loop-tree duality at higher loops

被引：0

作者：

Runkel, Robert ^{[1
]}

Szor, Zoltan ^{[1
]}

Vesga, Juan Pablo ^{[1
]}

Weinzierl, Stefan ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, Inst Phys, D-55099 Mainz, Germany

来源：

14TH INTERNATIONAL SYMPOSIUM ON RADIATIVE CORRECTIONS, RADCOR2019 | 2020年

关键词：

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a new formulation of the loop-tree duality theorem for higher loop diagrams valid both for massless and massive cases. l-loop integrals are expressed as weighted sum of trees obtained from cutting l internal propagators of the loop graph. In addition, the uncut propagators gain a modified id -prescription, named dual-propagators. In this new framework one can go beyond graphs and calculate the integrand of loop amplitudes as a weighted sum of tree graphs, which form a tree-like object. These objects can be computed efficiently via recurrence relations.

引用

页数：10

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