First search for axion dark matter with a Madmax prototype

arXiv - PHYS - High Energy Physics - Experiment Pub Date : 2024-09-18 DOI:arxiv-2409.11777

B. Ary dos Santos Garcia, D. Bergermann, A. Caldwell, V. Dabhi, C. Diaconu, J. Diehl, G. Dvali, J. Egge, E. Garutti, S. Heyminck, F. Hubaut, A. Ivanov, J. Jochum, S. Knirck, M. Kramer, D. Kreikemeyer-Lorenzo, C. Krieger, C. Lee, D. Leppla-Weber, X. Li, A. Lindner, B. Majorovits, J. P. A. Maldonado, A. Martini, A. Miyazaki, E. Öz, P. Pralavorio, G. Raffelt, J. Redondo, A. Ringwald, J. Schaffran, A. Schmidt, F. Steffen, C. Strandhagen, I. Usherov, H. Wang, G. Wieching

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Abstract

This paper presents the first search for dark matter axions with mass in the ranges 76.56 to 76.82 $\mu$eV and 79.31 to 79.53 $\mu$eV using a prototype setup for the MAgnetized Disk and Mirror Axion eXperiment (MADMAX). The experimental setup employs a dielectric haloscope consisting of three sapphire disks and a mirror to resonantly enhance the axion-induced microwave signal within the magnetic dipole field provided by the 1.6 T Morpurgo magnet at CERN. Over 14.5 days of data collection, no axion signal was detected. A 95% CL upper limit on the axion-photon coupling strength down to $|g_{a\gamma}| \sim 2 \times 10^{-11} \mathrm{GeV}^{-1}$ is set in the targeted mass ranges, surpassing previous constraints, assuming a local axion dark matter density $\rho_{a}$ of $0.3~\mathrm{GeV}/\mathrm{cm}^3$. This study marks the first axion dark matter search using a dielectric haloscope.

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利用 Madmax 原型机首次寻找轴心暗物质

本文介绍了利用 "磁盘和镜子轴子实验"（MADMAX）原型装置首次搜索质量在76.56到76.82和79.31到79.53之间的暗物质轴子的情况。实验装置采用了一个由三个蓝宝石盘和一面镜子组成的介质卤化镜，在欧洲核子研究中心1.6 T Morpurgo磁铁提供的磁偶极子场内共振增强轴心诱导的微波信号。轴子-光子耦合强度的95% CL上限低至$|g_{a\gamma}| \sim 2\times 10^{-11}\在目标质量范围内，假定本地轴心暗物质密度为0.3~\mathrm{GeV}/\mathrm{cm}^3$，则设定了超越先前约束的 "mathrm{GeV}^{-1}$"。这项研究标志着首次使用介电卤化镜搜索轴心暗物质。

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arXiv - PHYS - High Energy Physics - Experiment

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