24 papers
Infrared singularities and the collinear limits of multi-leg scattering amplitudes
Sebastian Jaskiewicz
Scattering amplitudes admit a factorised structure in special kinematic limits, such as the soft and collinear limits. In this work, we investigate the multi-particle collinear lim…
IterInt: Evaluating iterated integrals via differential equations
Gideon Baur, Claude Duhr
We introduce IterInt, a novel package implemented in both Mathematica and C++ for the numerical evaluation of iterated integrals involving arbitrary integration kernels. After the…
Discrete symmetries of Feynman integrals
Claude Duhr, Sara Maggio, Cathrin Semper +1
We perform a comprehensive study of a certain class of discrete symmetries of families of Feynman integrals, defined as affine changes of variables that map different sectors of th…
Elliptic Multiple Polylogarithms with Arbitrary Arguments in \textsc{GiNaC}
Claude Duhr, Florian Lorkowski, Robin Marzucca +2
We present an algorithm for the numerical evaluation of elliptic multiple polylogarithms for arbitrary arguments and to arbitrary precision. The cornerstone of our approach is a pr…
Canonical differential equations beyond polylogs
Claude Duhr, Sara Maggio, Christoph Nega +3
Feynman integrals whose associated geometries extend beyond the Riemann sphere, such as elliptic curves and Calabi-Yau varieties, are increasingly relevant in modern precision calc…
A comprehensive analysis of Drell-Yan production uncertainties and mass effects at moderate and low dilepton masses
Ekta Chaubey, Claude Duhr, Rhorry Gauld +1
We present a thorough investigation of the sources of uncertainties to the Drell-Yan production using state-of-the-art predictions for both neutral and charged current channels, fo…