SRF Cavity Searches for Dark Photon Dark Matter: First Scan Results
| Autor: | Tang, Zhenxing, Wang, Bo, Chen, Yifan, Zeng, Yanjie, Li, Chunlong, Yang, Yuting, Feng, Liwen, Sha, Peng, Mi, Zhenghui, Pan, Weimin, Zhang, Tianzong, Jin, Yirong, Hao, Jiankui, Lin, Lin, Wang, Fang, Xie, Huamu, Huang, Senlin, Shu, Jing |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Accelerator Physics (physics.acc-ph)
High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics (astro-ph.CO) High Energy Physics - Phenomenology (hep-ph) FOS: Physical sciences Physics - Accelerator Physics High Energy Physics - Experiment Astrophysics - Cosmology and Nongalactic Astrophysics |
| Popis: | We present the first use of a tunable superconducting radio frequency cavity to perform a scan search for dark photon dark matter with novel data analysis strategies. We mechanically tuned the resonant frequency of a cavity embedded in the liquid helium with a temperature of $2$ K, scanning the dark photon mass over a frequency range of $1.37$ MHz centered at $1.3$ GHz. By exploiting the superconducting radio frequency cavity's considerably high quality factors of approximately $10^{10}$, our results demonstrate the most stringent constraints to date on a substantial portion of the exclusion parameter space, particularly concerning the kinetic mixing coefficient between dark photons and electromagnetic photons $\epsilon$, yielding a value of $\epsilon < 2.2 \times 10^{-16}$. Comment: 11 pages, 7 figures |
| Databáze: | OpenAIRE |
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