2025/09/12 by M. P. Ross, Ross, M. P., S. K. Apple +9 · 1 citation
Engineering · Physics and Astronomy · #CCD and CMOS Imaging Sensors #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #History and Developments in Astronomy
paper · pdf · doi:10.48550/arxiv.2509.10701
openalex publication_date 2025/09/12 · openalex created_date 2025/10/12 · openalex updated_date 2026/07/28
Dark matter remains a mystery in fundamental physics. The only evidence for dark matter's existence is from gravitational interactions. We constructed a precision torsion balance experiment to search for non-gravitational, long-range interactions between ordinary matter in our lab and the Milky Way's dark matter. We find no evidence of such interaction and set strict upper bounds on its strength. These results suggest that dark matter only interacts gravitationally over long distances and constrains a variety of dark matter theories.