Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

This review describes the duality between color and kinematics and its applications, with the
aim of gaining a deeper understanding of the perturbative structure of gauge and gravity …

We present the new version of OpenLoops, an automated generator of tree and one-loop
scattering amplitudes based on the open-loop recursion. One main novelty of OpenLoops 2 …

Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle
collisions in high-energy collider experiments. We summarize essential features and …

We analyze constraints from perturbative unitarity and crossing on the leading contributions
of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions …

We present the library Collier for the numerical evaluation of one-loop scalar and tensor
integrals in perturbative relativistic quantum field theories. The code provides numerical …

A bstract We discuss the theoretical bases that underpin the automation of the computations
of tree-level and next-to-leading order cross sections, of their matching to parton shower …

We compute the two-loop helicity amplitudes for the scattering of five gluons, including all
contributions beyond the leading-color approximation. The analytic expressions are …

FeynRules is a Mathematica-based package which addresses the implementation of particle
physics models, which are given in the form of a list of fields, parameters and a Lagrangian …

In this work, we present the package NeatIBP, which automatically generates small-size
integration-by-parts (IBP) identities for Feynman integrals. Based on the syzygy and module …