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arXiv 1807.08516astro-ph.COhep-exphysics.ins-det
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在XMASS探测器中寻找隐藏光子和类轴子粒子形式的暗物质

Search for dark matter in the form of hidden photons and axion-like particles in the XMASS detector

XMASS Collaboration, K. Abe, K. Hiraide, K. Ichimura, Y. Kishimoto, K. Kobayashi, M. Kobayashi, S. Moriyama, M. Nakahata, H. Ogawa, K. Sato, H. Sekiya, T. Suzuk… 展开作者

XMASS Collaboration, K. Abe, K. Hiraide, K. Ichimura, Y. Kishimoto, K. Kobayashi, M. Kobayashi, S. Moriyama, M. Nakahata, H. Ogawa, K. Sato, H. Sekiya, T. Suzuki, O. Takachio, A. Takeda, S. Tasaka, M. Yamashita, B. S. Yang, N. Y. Kim, Y. D. Kim, Y. Itow, K. Kanzawa, K. Masuda, K. Martens, Y. Suzuki, B. D. Xu, K. Miuchi, N. Oka, Y. Takeuchi, Y. H. Kim, K. B. Lee, M. K. Lee, Y. Fukuda, M. Miyasaka, K. Nishijima, K. Fushimi, G. Kanzaki, S. Nakamura

摘要:

如果隐藏的光子和类轴子粒子是在早期宇宙中以非热的方式产生的,那么它们就是冷暗物质的候选者。我们使用XMASS探测器的800个实时数据对这两种玻色子进行了搜索,基准体积中有327公斤的液体氙。没有观察到明显的信号,因此,我们设置约束的$α' / α$参数相关的动力学混合的隐藏的光子和耦合常数$g_{Ae}$的轴子粒子的质量范围从40至120 keV/ $c^2$,导致在$α' / α< 6 \times 10^{-26}$和$g_{Ae} < 4 \times 10^{-13}$。这些限制是迄今为止直接和间接检索得出的最严格限制。

英文摘要:

Hidden photons and axion-like particles are candidates for cold dark matter if they were produced non-thermally in the early universe. We conducted a search for both of these bosons using 800 live-days of data from the XMASS detector with 327 kg of liquid xenon in the fiducial volume. No significant signal was observed, and thus we set constraints on the $α' / α$ parameter related to kinetic mixing of hidden photons and the coupling constant $g_{Ae}$ of axion-like particles in the mass range from 40 to 120 keV/$c^2$, resulting in $α' / α< 6 \times 10^{-26}$ and $g_{Ae} < 4 \times 10^{-13}$. These limits are the most stringent derived from both direct and indirect searches to date.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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