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