April 30, 2024 to May 3, 2024
Amsterdam, Hotel CASA
Europe/Amsterdam timezone

Anomaly aware machine learning for dark matter direct detection at DARWIN

Apr 30, 2024, 3:42 PM
3m
Sorbonne, Hotel CASA

Sorbonne, Hotel CASA

Flashtalk with Poster Session A 2.3 Simulation-based inference

Speaker

Andre Scaffidi (SISSA)

Description

This talk presents a novel approach to dark matter direct detection using anomaly-aware machine learning techniques in the DARWIN next-generation dark matter direct detection experiment. I will introduce a semi-unsupervised deep learning pipeline that falls under the umbrella of generalized Simulation-Based Inference (SBI), an approach that allows one to effectively learn likelihoods straight from simulated data, without the need for complex functional dependence on systematics or nuisance parameters. I also present an inference procedure to detect non-background physics utilizing an anomaly function derived from the loss functions of the semi-unsupervised architecture. The pipeline's performance is evaluated using pseudo-data sets in a sensitivity forecasting task, and the results suggest that it offers improved sensitivity over traditional methods.

Primary author

Presentation materials