Jun 25 – 28, 2024
ETH Zurich
Europe/Zurich timezone

Anomaly aware machine learning for dark matter direct detection at DARWIN

Jun 26, 2024, 12:00 PM
15m
HCI J4 (ETH Zurich)

HCI J4

ETH Zurich

ETH Zürich, Hönggerberg campus, Stefano-​​Franscini-​Platz 5, 8093 Zurich, Switzerland.

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.

Type of contribution Talk: 15 minutes.

Primary authors

Presentation materials