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Constraints on Sequential Discontinuities from the Geometry of On-shell Spaces

We present several classes of constraints on the discontinuities of Feynman integrals that go beyond the Steinmann relations. These constraints follow from a geometric formulation of the Landau equations that was advocated by Pham, in which the singularities of Feynman integrals correspond to critic...

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Detalles Bibliográficos
Autores principales: Hannesdottir, Holmfridur S., McLeod, Andrew J., Schwartz, Matthew D., Vergu, Cristian
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP07(2023)236
http://cds.cern.ch/record/2841133