COMETA Colloquium: Frank Tackmann

Monday 27 Oct 2025, 14:00 → 16:00 Europe/Zurich

Zoom room: https://cern.zoom.us/j/63628931616?pwd=YnlaRzlQck84b2szN2lPUlVqOGoxZz09

 

This event is organised by the COMETA COST Action, a EU-funded networking initiative that promotes knowledge sharing and cooperation across the theory, experiment, and ML communities, with the aim of improving the measurement and interpretation of multiboson processes at the LHC.

Find recordings of all COMETA Colloquia on our youtube channel @multibosons!

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1 Beyond scale variations: perturbative theory uncertainties from nuisance parameters

I will discuss a new approach to quantify theory uncertainties due to
missing higher orders using theory nuisance parameters (TNPs), which
overcomes many of the well-known and long-standing shortcomings of the
traditional scale-variation approach. I will first give a pedagogical
introduction to the basic ideas and concepts behind TNPs. I will then
discuss its first real-world applications to theory predictions and in fits to
experimental data, where one of its key benefits is to allow for a consistent
profiling of theory uncertainties.

Speakers: Frank Tackmann (Deutsches Elektronen-Synchrotron (DE)), Frank Tackmann

2025-10-27_COMETA_TNPs_FT.pdf