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Back to the formula - LHC edition

Anja Butter, Tilman Plehn, Nathalie Soybelman, Johann Brehmer

SciPost Phys. 16, 037 (2024) · published 29 January 2024


While neural networks offer an attractive way to numerically encode functions, actual formulas remain the language of theoretical particle physics. We use symbolic regression trained on matrix-element information to extract, for instance, optimal LHC observables. This way we invert the usual simulation paradigm and extract easily interpretable formulas from complex simulated data. We introduce the method using the effect of a dimension-6 coefficient on associated ZH production. We then validate it for the known case of CP-violation in weak-boson-fusion Higgs production, including detector effects.

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