Chrome Extension
WeChat Mini Program
Use on ChatGLM

Cavity As Radio Telescope for Galactic Dark Photon

Science bulletin(2025)

Niels Bohr International Academy | Chinese Academy of Sciences Institute of Theoretical Physics | Peking University Center for High Energy Physics | University of Chinese Academy of Sciences School of Physical Sciences | Peking University Beijing Laser Acceleration Innovation Center

Cited 0|Views23
Abstract
Dark photons, as a minimal extension of the Standard Model through an additional Abelian gauge group, may propagate relativistically across the galaxy, originating from dark matter decay or annihilation, thereby contributing to a galactic dark photon background. The generation of dark photons typically favors certain polarization modes, which are dependent on the interactions between dark matter and dark photons. We introduce a framework in which a resonant cavity is utilized to detect and differentiate these polarizations, leveraging the daily variation in expected signals due to the anisotropic distribution of dark photons and the rotation of the Earth. We conduct an experimental search using superconducting radio-frequency cavities, noted for their exceptionally high quality factors, proving them to be effective telescopes for observing galactic dark photons. This approach establishes the most stringent limits yet on the kinetic mixing coefficient between dark photons and electromagnetic photons, thereby unveiling a novel avenue for the indirect search for dark matter via multi-messenger astronomy.
More
Translated text
Key words
Dark photon,Resonant cavity,Dark matter indirect detection,Multi-messenger astronomy
PDF
Bibtex
AI Read Science
AI Summary
AI Summary is the key point extracted automatically understanding the full text of the paper, including the background, methods, results, conclusions, icons and other key content, so that you can get the outline of the paper at a glance.
Example
Background
Key content
Introduction
Methods
Results
Related work
Fund
Key content
  • Pretraining has recently greatly promoted the development of natural language processing (NLP)
  • We show that M6 outperforms the baselines in multimodal downstream tasks, and the large M6 with 10 parameters can reach a better performance
  • We propose a method called M6 that is able to process information of multiple modalities and perform both single-modal and cross-modal understanding and generation
  • The model is scaled to large model with 10 billion parameters with sophisticated deployment, and the 10 -parameter M6-large is the largest pretrained model in Chinese
  • Experimental results show that our proposed M6 outperforms the baseline in a number of downstream tasks concerning both single modality and multiple modalities We will continue the pretraining of extremely large models by increasing data to explore the limit of its performance
Try using models to generate summary,it takes about 60s
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Data Disclaimer
The page data are from open Internet sources, cooperative publishers and automatic analysis results through AI technology. We do not make any commitments and guarantees for the validity, accuracy, correctness, reliability, completeness and timeliness of the page data. If you have any questions, please contact us by email: report@aminer.cn
Chat Paper

要点】:本研究提出利用谐振腔作为射电望远镜探测银河系暗光子,通过分析不同偏振模式,设定了暗光子与电磁光子间动量混合系数的最严格限制,为间接搜寻暗物质开辟了新途径。

方法】:研究构建了一个使用谐振腔检测并区分暗光子偏振模式的框架,通过地球自转导致暗光子各向异性分布的日变化信号来提高探测效率。

实验】:实验采用超导射频谐振腔,以其高Q值特性作为探测工具,通过实验搜索得出了结果,并使用了相应的数据集来分析信号,但论文中未明确提及数据集名称。