Mathematical aspects of loop amplitudes

We investigate in detail the relationship between scattering amplitudes, number theory and algebraic geometry, with the final aim of developing novel computational techniques for scattering amplitudes that are beyond reach of conventional state-of-the-art technology.

Selected publications

• Multi-Regge kinematics and the moduli space of Riemann spheres with marked points , JHEP 1608 (2016) 152, [arXiv:1606.08807]

• Three-loop corrections to the soft anomalous dimension in multileg scattering , JHEP 1608 (2016) 152, [arXiv:1507.00047]

QCD at the precision frontier

Higher order corrections to key processes at the LHC (Higgs,...) are computed to higher orders in perturbation theory. The goal is to provide precision predictions for collider observables.

Selected publications

• High precision determination of the gluon fusion Higgs boson cross-section at the LHC , JHEP 1605 (2016) 058, [arXiv:1602.00695]

• Higgs Boson Gluon-Fusion Production in QCD at Three Loops , Phys.Rev.Lett. 114 (2015) 212001, [arXiv:1503.06056]

BSM Phenomenology with FeynRules

We develop FeynRules, a Mathematica-based pacake to compute Feynman rules from a Lagrangian in an automated way. The Feynman rules can be exported to a large variety to matrix element generators. The package can be downloaded here.

Selected publications

• Computing decay rates for new physics theories with FeynRules and MadGraph 5 _aMC@NLO , Comput.Phys.Commun. 197 (2015) 312-323, [arXiv:1402.1178]

• FeynRules 2.0 - A complete toolbox for tree-level phenomenology , Comput.Phys.Commun. 185 (2014) 2250-2300, [arXiv:1310.1921]