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Feynman rules of higher-order poles in CHY construction
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نویسنده
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Huang Rijun ,Feng Bo ,Luo Ming-xing ,Zhu Chuan-Jie
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 6 - صفحه:1 -48
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چکیده
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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.
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کلیدواژه
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Scattering Amplitudes ,Differential and Algebraic Geometry
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آدرس
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Zhejiang University, Department of Physics, PR China, Zhejiang University, Department of Physics, PR China, Zhejiang University, Department of Physics, PR China, Renmin University of China, Department of Physics, PR China
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Authors
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