Skip to yearly menu bar Skip to main content


Poster
in
Workshop: Machine Learning and the Physical Sciences

An Imperfect machine to search for New Physics: systematic uncertainties in a machine-learning based signal extraction

Gaia Grosso · Maurizio Pierini


Abstract:

We show how to deal with uncertainties on the Reference Model predictions in a signal-model-independent new physics search strategy based on artificial neural networks. Our approach builds directly on the Maximum Likelihood ratio treatment of uncertainties as nuisance parameters for hypothesis testing that is routinely employed in high-energy physics. After presenting the conceptual foundations of the method, we show its applicability in a multivariate setup by studying the impact of two typical sources of experimental uncertainties in two-body final states at the LHC.

Chat is not available.