Particles that interact feebly with matter and have a sufficiently long lifetime can pass through the dump and be detected.
Notes on verification
Well-established principle in particle physics beam dump experiment design, corroborated by multiple peer-reviewed and preprint sources including Snowmass 2021, CERN SPS, JLab BDX, and dark matter review papers.
Sources
- Beam dump experiment (en.wikipedia.org)
- https://arxiv.org/pdf/2011.02157 (arxiv.org)
- https://arxiv.org/pdf/2209.06289 (arxiv.org)
- https://arxiv.org/pdf/1810.06880 (arxiv.org)
- https://arxiv.org/pdf/2011.10532 (arxiv.org)
- https://link.springer.com/chapter/10.1007/978-1-4684-1107-2_20 (link.springer.com)
- https://link.springer.com/article/10.1007/JHEP05(2019)028 (link.springer.com)
- https://link.springer.com/10.1140/epjc/s10052-022-10346-5 (link.springer.com)
- https://www.researchgate.net/figure/Detection-methods-of-hidden-particles-in-beam-dump-experiments-A-beam-of-electrons-or_fig2_340468604 (researchgate.net)