Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 87: Electroweak Interactions (Exp.) 2
T 87.7: Vortrag
Donnerstag, 24. März 2022, 17:50–18:05, T-H18
Automated Resummation of Electroweak Sudakov logarithms using SCETEW — •Stefan Rode — Julius-Maximilians-Universität Würzburg
The search for new physics at the LHC necessitates the precise comparison between theoretical predictions in the Standard Model and experimental data. The calculation of electroweak radiative corrections, required to reach a sub-percent accuracy on the theory side, yields potentially large logarithmic corrections of the form αlog(s/MW2) to each order in perturbation theory. While at the LHC these corrections can already reach several tens of percent, this problem will be even more relevant at future colliders, where a resummation of these corrections will be inevitable to maintain the predictive power of the calculation.
We present a framework for the automated calulation of observables including the resummation of large logarithmic corrections using a generalisation of Soft-Collinear Effective Theory (SCET) to spontaneously broken gauge theories. We present results for W-boson pair production at the LHC and compare with the well-known results obtained using fixed-order methods.