Cutting the traintracks: Cauchy, Schubert and Calabi-Yau

Abstract In this note we revisit the maximal-codimension residues, or leading singularities, of four-dimensional L-loop traintrack integrals with massive legs, both in Feynman parameter space and in momentum (twistor) space. We identify a class of “half traintracks” as the most general degenerations...

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Bibliographic Details
Main Authors: Qu Cao, Song He, Yichao Tang
Format: Article
Language:English
Published: SpringerOpen 2023-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2023)072