particle physics; resummations of perturbation theory; quantum chromodynamics; soft-collinear effective theory; hadronic collisions; effective field theory
Becher Thomas, Rahn Rudi, Shao Ding Yu (2017), Non-global and rapidity logarithms in narrow jet broadening, in JHEP
, 10, 030-030.
Becher Thomas, Neubert Matthias, Rothen Lorena, Shao Ding Yu (2016), Factorization and Resummation for Jet Processes, in JHEP
, 11, 019-019.
Becher Thomas, Pecjak Benjamin D., Shao Ding Yu (2016), Factorization for the light-jet mass and hemisphere soft function, in JHEP
, 12, 018-018.
The goal of our project are precision predictions for collider physics observables which involve disparate scales. Scale hierarchies can arise due to experimental cuts, or when analyzing more exclusive quantities, such as the substructure of hadronic jets. They lead to enhanced higher-order terms in perturbative computations. Thanks to a recent breakthrough in our research, the effective-field-theory methods we use to resum the large higher-order corrections to all orders can now be applied to a much wider class of observables, in particular also to genuine jet cross sections, the most important category of LHC observables. In the present project, we will develop methods to solve the associated renormalization-group equations and then use our new framework to obtain improved predictions for cone-jet cross sections. In addition, we will automate the higher-logarithmic resummation of a simpler observable, namely the transverse momentum spectrum of (one or several) electroweak bosons.