Functional anatomy of Pythia-Herwig differences with Kolmogorov-Arnold networks
Differences between high-energy event generators can arise at several stages of the collision simulation, from the hard scattering through parton showering and hadronization to the final event. These differences are usually summarized using observable distributions or global classifier scores. While these quantify the disagreement, they do not reveal which observable-level structures carry it or whether those structures persist through different stages of event generation. In this work, we formulate this problem as a staged functional analysis of generator-model differences. Following the same hard dijet events through Pythia and Herwig at shower-only, hadronized, and full-generator level...
| Authors | Arghya Chattopadhyay |
|---|---|
| Primary category | hep-ph |
| Published | 16 August 2026 |
| Last updated at source | 16 August 2026 |
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