538 citations · 1.2k across the 12 of their papers we have counts for
4 papers · 2 filters
Dual Conformal Symmetry, Integration-by-Parts Reduction, Differential Equations and the Nonplanar Sector
Zvi Bern, Michael Enciso, Harald Ita +1
We show that dual conformal symmetry, mainly studied in planar super-Yang-Mills theory, has interesting consequences for Feynman integrals in nonsupersymmetric the…
The Five-Loop Four-Point Integrand of N=8 Supergravity as a Generalized Double Copy
Zvi Bern, John Joseph M. Carrasco, Wei-Ming Chen +3
We use the recently developed generalized double-copy procedure to construct an integrand for the five-loop four-point amplitude of N=8 supergravity. This construction starts from…
Manifesting enhanced cancellations in supergravity: integrands versus integrals
Zvi Bern, Michael Enciso, Julio Parra-Martinez +1
Examples of "enhanced ultraviolet cancellations" with no known standard-symmetry explanation have been found in a variety of supergravity theories. By examining one- and two-loop e…
Differential equations on unitarity cut surfaces
Mao Zeng
We reformulate differential equations (DEs) for Feynman integrals to avoid doubled propagators in intermediate steps. External momentum derivatives are dressed with loop momentum d…