Work

Feynman Integrals and Scattering Amplitudes from Wilson Loops

Year: 2021

Type: article

Abstract: We study Feynman integrals and scattering amplitudes in N=4 super-Yang-Mills theory by exploiting the duality with null polygonal Wilson loops. As the main application, we compute for the first time the symbols of the general double pentagon integrals, which give the finite part of two-loop maximally helicity violating (MHV) amplitudes and finite components of next-to-MHV (NMHV) amplitudes to all multiplicities. The rational parts of the symbol consist of 164 letters, while the algebraic part contains 96 algebraic letters and cancel in MHV amplitudes and NMHV components which are free of square roots.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.126.231601

Authors: Song He, Zhenjie Li, Qinglin Yang, Chi Zhang

Institutions: Chinese Academy of Sciences, International Centre for Theoretical Physics Asia-Pacific, Institute of Theoretical Physics, University of Chinese Academy of Sciences, University of Copenhagen

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: Villum Fonden, National Natural Science Foundation of China, Key Research Program of Frontier Science, Chinese Academy of Sciences, H2020 European Research Council