Periodic Reporting for period 1 - TOPUP (Theory of particle collider processes at ultimate precision)
Periodo di rendicontazione: 2021-09-01 al 2023-02-28
This project aims to meet this challenge for modern collider physics by providing the conceptual and technical foundations for theory predictions at ultimate precision. It will develop and establish a new standard of theoretical precision in the description of physical observables at the LHC based on perturbation theory expanded to the third non-trivial order (N3LO). We will achieve this ambitious goal by targeting the main obstacles in present-day methods, and by developing novel ways for the computation of multi-loop scattering amplitudes and in the understanding and handling of unresolved multi-particle emission.
The concrete goal of the project is to enable theoretical predictions at ultimate precision for multiple processes in high-energy particle collisions with full final state kinematical information. This will lead to a more precise extraction of fundamental physics parameters, such as couplings and particle masses, and will shape the LHC precision physics program.
we computed fully differential observables in lepton pair production at the CERN LHC, which are immediately relevant to precision measurements of gauge boson masses and electroweak coupling parameters at the LHC.