High precision determination of the gluon fusion Higgs cross-section at the LHC
Elisabetta Furlan (ETH Zürich)

At present, the largest source of uncertainty in the extraction of the Higgs properties from LHC data comes from the theory error on the production cross section. We recently managed to obtain a dramatic reduction of this uncertainty with the calculation of the gluon-fusion production rate through the next-to-next-to-next to leading order (N^3LO) in QCD.
I will give an overview of the tools that we employed to achieve this result, discuss the various contributions that enter the final cross section, and assess the remaining theory uncertainty.