Erratum: Causality and Loop-Tree Duality at Higher Loops [Phys. Rev. Lett. 122, 111603 (2019)].
Erratum: Causality and Loop-Tree Duality at Higher Loops [Phys. Rev. Lett. 122, 111603 (2019)].
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勘误表:更高循环中的因果关系和循环树对偶性 [Phys Rev Lett 122, 111603 (2019)]
DOI:
10.1103/physrevlett.123.059902
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发表时间:
2019
影响因子:
8.6
通讯作者:
S. Weinzierl
中科院分区:
文献类型:
--
作者:
R. Runkel;Z. Ször;J. P. Vesga;S. Weinzierl
We relate an-loop Feynman integral to a sum of phase space integrals, where the integrands are determined by the spanning trees of the original-loop graph. Causality requires that the propagators of the trees have a modifiedprescription, and we present a simple formula for the correctprescription.