Detection of Dark Matter Coherent Scattering via Torsion Balance with Test Bodies of Different Sizes

• DOI: 10.48550/arxiv.2409.09950
• Publication Date: 2024-09-15
• Authors: Shigeki Matsumoto; Jie Sheng; Chuan-Yang Xing
• Keywords: High Energy Physics - Phenomenology; High Energy Physics - Phenomenology (hep-ph); FOS: Physical sciences

Dark matter with mass in the crossover range between wave dark and particle matter, around $(10^{-3},\, 10^3)\,$eV, remains relatively unexplored by terrestrial experiments. In this regime, scatters coherently macroscopic objects. The effect of coherent scattering greatly enhances accelerations targets that collisions cause a factor $\sim 10^{23}$. We propose novel torsion balance experiment test bodies different geometric sizes to detect such matter-induced acceleration. This method provides strongest constraints on cross-section nucleon $(10^{-5}, 10^3)\,$eV.