3 papers
hep-ph2026
Accelerating Feynman Integral Evaluation by Avoiding Contour Deformation
Stephen P. Jones, Anton Olsson, Thomas Stone
We describe our method for rewriting dimensionally regulated Feynman parameter integrals in the Minkowski regime as a sum of real, positive integrands multiplied by complex prefact…
hep-ph2026
Globally Optimal Contour Deformations with Neural Networks
Stephen Jones, Daniel Maître, Anton Olsson
In this article, we explore the use of contour deformation for the numerical evaluation of Feynman integrals after sector decomposition. In existing codes, the contour of integrati…
hep-ph2025
Positive Integrands from Feynman Integrals in the Minkowski Regime
Stephen Jones, Anton Olsson, Thomas Stone
We present a method for rewriting dimensionally regulated Feynman parameter integrals in the Minkowski regime as a sum of real, positive integrands multiplied by complex prefactors…