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Leading singularities in Baikov representation and Feynman integrals with uniform transcendental weight

MPS-Authors

Dlapa,  Christoph
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li,  Xiaodi
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhang,  Yang
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Dlapa, C., Li, X., & Zhang, Y. (2021). Leading singularities in Baikov representation and Feynman integrals with uniform transcendental weight. Journal of High Energy Physics, 07, 227. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-23.


Cite as: https://hdl.handle.net/21.11116/0000-000A-1C04-3
Abstract
We provide a leading singularity analysis protocol in Baikov representation, for the searching of Feynman integrals with uniform transcendental (UT) weight. This approach is powered by the recent developments in rationalizing square roots and syzygy computations, and is particularly suitable for finding UT integrals with multiple mass scales. We demonstrate the power of our approach by determining the UT basis for a two-loop diagram with three external mass scales.