Speaker
Description
We present recent progress in the calculation of two-loop integrals contributing to NNLO corrections of the production of a top-pair in association with a W boson at hadron colliders, focusing on integral families contributing to its leading colour approximation. These families also contribute to ttH and ttZ production. These processes represent fundamental signatures at the Large Hadron Collider, and their precise cross-section predictions are imperative for conducting meaningful comparisons with experimental data. In our study, we employ the method of differential equations, facilitated by the use of finite field methods for the reconstruction of the differential equation matrices. The inclusion of the top quark in the virtual propagators, in addition to the additional mass acquired by the massive external boson, results in an enhancement of the complexity of the structure of the Feynman integral, which we show contains nested square roots and elliptic functions.
