Seminars SS2023
Tuesday, July 11, 2023
laria Brivio (University of Bologna, Italy)
EFT Interpretations
Abtrakt: tbd
Host: Johannes Erdmann
Tuesday, April 25, 2023
Markus Steidl (KIT, Karlsruhe)
KATRIN experiment - What is the absolute mass scale of neutrinos?
Abstract: tbd
Host: Robert Harlander
Tuesday, April 18, 2023
Rene Poncelet (Cambridge University, UK)
Jet identification and flavoured jet algorithms
Abstract: tbd
Host: Malgorzata Worek
Tuesday, April 11, 2023
Rikkert Frederix (Lund University, Sweden)
Matching and Merging: Combining Matrix Elements and Parton Showers
Abstrakt: tbd
Host: Malgorzata Worek
Tuesday, April 04, 2023
Javier Llorente (Simon Fraser University, Canada)
Multijet production at the LHC: Event shapes, NNLO predictions and α_s
Abstrakt: Event shapes are a class of observables whose first non-trivial contributions in perturbative QCD arise from the radiation of a third jet. Measurements of such variables at hadron colliders can serve as a precision test of perturbative QCD. This talk will review the status of such measurements in the ATLAS experiment, as well as the comparison of these data to high-precision next-to-next-to-leading order predictions for three-jet production, which have become recently available. Fits of these theoretical predictions to measurements of Transverse Energy-Energy Correlations and their azimuthal asymmetry are performed to determine the value of the strong coupling constant αs at different energy scales, thus testing the running of the QCD coupling with unprecedented precision beyond the TeV scale.
Host: Michal Czakon