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10–14 Jun 2024
IFT (Madrid, Spain)
Europe/Madrid timezone

Modular tool for bayesian analysis with Machine Learning in DM Direct Detection

11 Jun 2024, 16:26
17m
Sala Gris I

Sala Gris I

Parallel Talk Dark matter, astroparticles and gravitational waves Dark matter, astroparticles and gravitational waves

Speaker

Dr Andres Daniel Perez (Instituto de Física Teórica UAM-CSIC)

Description

In this work we present a modular procedure for estimating the dark matter (DM) parameters from DM direct detection experiments. We use machine learning techniques to perform a Bayesian analysis to determine the discovery potential and to estimate the model parameters without the need of assuming a likelihood functional form. Since each dataset can be trained individually, one of the main advantages of the method is that the inclusion of new experimental data is simple and fast. This allows to include, combine, or remove datasets, either data representations or results from different detectors, using already trained algorithms in a modular fashion. In order to illustrate this method we consider the case of WIMP DM within the framework of effective field theory (EFT) to describe the DM-nucleus scattering cross section in a XENON-like experiment. We show the results in the DM mass, coupling-coefficient amplitude and phase space of the EFT operators.

Author

Dr Andres Daniel Perez (Instituto de Física Teórica UAM-CSIC)

Co-authors

David Cerdeño (Institute for Theoretical Physics (IFT-UAM/CSIC)) Dr Martín de los Rios (IFT/UAM)

Presentation materials