First nuclear ultraheavy dark matter search in argon time projection chambers with the DarkSide-50 experiment
Abstract
We report on the first search for nuclear ultraheavy dark matter (UHDM) in a dual-phase liquid argon time projection chamber using the DarkSide-50 experiment. Unlike conventional weakly interacting massive particles, a nuclear UHDM model may be composed of many dark nucleons and scatter numerous times while passing through the detector. Accounting for energy loss through the Earth’s overburden, we apply selection criteria optimized for multiscatter event topologies using the 532-day low-radiation campaign of the DarkSide-50 detector. Excluded limits on the UHDM-nucleon scattering cross section for dark nucleon masses of m χ = 10 , 50 , 100 , 500 GeV / c 2 are presented.
Fields of Study & Subjects
Dark Matter and Cosmic Phenomena
Neutrino Physics Research
Particle Detector Development and Performance
Publication details
- Journal / source
- Physical review. D/Physical review. D.
- Volume
- 114
- Issue
- 5
- Pages
- 052001
- Publication date
- 6 July 2026
- Language
- EN