低阈值双通道温度声子探测器的轻暗物质相互作用首次限制——来自 TESSERACT 合作
高能物理 - 实验
2026-04-14 v2 仪器与探测器
摘要
我们报告了在1 cm²面积、1 mm厚度（0.233克）的高分辨率硅质单孔声子探测器中进行的自旋无关暗物质-原子核相互作用搜索结果。该探测器在基底能量分辨率方面实现了361.5 ± 0.4 MeV/c²的 r.m.s. 基线能量分辨率，为迄今为止任何单孔声子探测器中最好的之一。以0.233克 × 12小时的暴露量，我们对暗物质质量在44至87 MeV/c²范围内的相互作用设定了最严格的约束，在87 MeV/c²处，最低未被探索的横截面为4 × 10⁻³² cm²。我们采用保守的“盐撒”技术（salting technique），实现了通过直接探测实验探测到的暗物质质量的最低值。该约束得益于将低能背景与单个传感器耦合的双通道抑制技术。
引用
@article{arxiv.2503.03683,
title = {First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration},
author = {C. L. Chang and Y. -Y. Chang and L. Chaplinsky and C. W. Fink and M. Garcia-Sciveres and W. Guo and S. A. Hertel and X. Li and J. Lin and M. Lisovenko and R. Mahapatra and W. Matava and D. N. McKinsey and V. Novati and P. K. Patel and B. Penning and H. D. Pinckney and M. Platt and M. Pyle and Y. Qi and M. Reed and G. R. C Rischbieter and R. K. Romani and B. Sadoulet and B. Serfass and P. Sorensen and A. Suzuki and V. Velan and G. Wang and Y. Wang and S. L. Watkins and M. R. Williams and J. K. Wuko and T. Aramaki and P. Cushman and N. N. Gite and A. Gupta and M. E. Huber and N. A. Kurinsky and J. S. Mammo and B. von Krosigk and A. J. Mayer and J. Nelson and S. M. Oser and L. Pandey and A. Pradeep and W. Rau and T. Saab},
journal= {arXiv preprint arXiv:2503.03683},
year = {2026}
}
备注
8 total pages, 5 figures, 2 appendices