Periodic Reporting for period 3 - QCDforfuture (QCD for the Future of Particle Physics)
Reporting period: 2020-01-01 to 2021-06-30
My research programme develops a novel and powerful framework for theoretical predictions based on the lessons learned from the first LHC run and the ongoing analysis of data from Run II. In particular it will combine the necessary high-energy corrections with state-of-the-art next-to-leading-order (NLO) fixed-order descriptions. A separate objective is to combine the high-energy corrections with the resummation contained in parton shower programs. This is necessary to describe data in regions where there is both evolution in rapidity and transverse momentum. The ultimate goal is to combine all three: high-energy corrections, NLO calculation and parton shower. Separate theoretical objectives will significantly improve our understanding of the underlying theory, which should ultimately enhance our description of data far beyond any current prediction. This will be the most complete description of quantum chromodynamics at colliders to date, and will be essential for the exploitation of future data from the LHC and beyond.
One of the central analyses at the LHC is that of Higgs boson plus dijet production which allows us to measure the coupling of the Higgs boson to other bosons and test the generation of particles masses in the Standard Model. Traditional fixed-order approaches are not able to include the impact of the mass of the top quark (the heaviest particle in the Standard Model) and have to make an approximation where its mass is infinite to make predictions for more than two coloured particles. This problem is far simpler in my framework making it the only method to include finite quark mass effects for 3 jets and above.