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T: Fachverband Teilchenphysik

T 99: Searches/BSM V

T 99.6: Vortrag

Freitag, 20. März 2026, 10:15–10:30, KH 02.014

On-the-fly reweighting for beyond Standard Model parameter variations in the Sherpa Event Generator — •Florens Förster and Frank Siegert — TUD Dresden University of Technology, Institute of Nuclear and Particle Physics

The research for Beyond the Standard Model physics relies on the study of different models containing higher dimensional operators. The effects of these models, which depend on certain model parameters, can be simulated, for example using the Sherpa event generator. Currently, the simulation with different parameters can only be done by changing their values manually and running the event generation once for each variation, which is neither user friendly nor particularly efficient.

In this study, the variation of model parameters is implemented within the Sherpa event generator using on-the-fly reweighting. This is supposed to save computational resources and make the usage of BSM Models easier in Sherpa. The newly implemented features are then tested and validated by studying the effects of BSM physics on certain scattering processes, particularly the electroweak γγjj production.

Keywords: Monte-Carlo event generator; BSM