Physical review letters
Nonlocal Symmetries of Planar Feynman Integrals.
Florian Loebbert, Lucas Rüenaufer, Sven F Stawinski
Published: 202510.1103/fvzk-dp1b
Abstract
We prove the invariance of scalar Feynman graphs of any planar topology under the Yangian level-one momentum symmetry given certain constraints on the propagator powers. The proof relies on relating this symmetry to a planarized version of the confor…
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