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Bayesian Optimization of Pythia8 Tunes (2505.11675v1)
Published 16 May 2025 in hep-ph, hep-ex, and stat.AP
Abstract: A new tune (set of model parameters) is found for the six most important parameters of the Pythia8 final state parton shower and hadronization model using Bayesian optimization. The tune fits the LEPI data from ALEPH better than the default tune in Pythia8. To the best of our knowledge, we present the most comprehensive application of Bayesian optimization to the tuning of a parton shower and hadronization model using the LEPI data.
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