Surrogate models for direct dark matter detection

Cerdeño, D.G.; Cheek, A.; Reid, E.; Schulz, H.

Abstract

In this work we introduce RAPIDD, a surrogate model that speeds up the computation of the expected spectrum of dark matter particles in direct detection experiments. RAPIDD replaces the exact calculation of the dark matter differential rate (which in general involves up to three nested integrals) with a much faster parametrization in terms of ordinary polynomials of the dark matter mass and couplings, obtained in an initial training phase. In this article, we validate our surrogate model on the multi-dimensional parameter space resulting from the effective field theory description of dark matter interactions with nuclei, including also astrophysical uncertainties in the description of the dark matter halo. As a concrete example, we use this tool to study the complementarity of different targets to discriminate simplified dark matter models. We demonstrate that RAPIDD is fast and accurate, and particularly well-suited to explore a multi-dimensional parameter space, such as the one in effective field theory approach, and scans with a large number of evaluations.

Citation

Cerdeño, D., Cheek, A., Reid, E., & Schulz, H. (2018). Surrogate models for direct dark matter detection. Journal of Cosmology and Astroparticle Physics, 2018(08), Article 011. https://doi.org/10.1088/1475-7516/2018/08/011

• Journal Article Type: Article
• Acceptance Date: Jul 17, 2018
• Online Publication Date: Aug 9, 2018
• Publication Date: Aug 9, 2018
• Deposit Date: Aug 28, 2018
• Publicly Available Date: Aug 9, 2019
• Journal: Journal of Cosmology and Astroparticle Physics
• Electronic ISSN: 1475-7516
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 2018
• Issue: 08
• Article Number: 011
• DOI: https://doi.org/10.1088/1475-7516/2018/08/011
• Public URL: https://durham-repository.worktribe.com/output/1321701