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Feynman Rules of Higher-order Poles in CHY Construction by Huang, Rijun; Feng, Bo; Luo, Ming-xing; Zhu, Chuan-Jie is a scholarly article available to read on EtoBox.

What is Feynman Rules of Higher-order Poles in CHY Construction about?

In this paper, we generalize the integration rules for scattering equations to situations where higher-order poles are present. We describe the strategy to deduce the Feynman rules of higher-order poles from known analytic results of simple CHY-integrands, and propose the Feynman rules for single double pole and triple pole as well as duplex-double pole and triplex-double pole structures. We demonstrate the validation and strength of these rules by ample non-trivial examples.

Author

Huang, Rijun; Feng, Bo; Luo, Ming-xing; Zhu, Chuan-Jie

Published

2016

Language

EN