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arXiv 1901.05910physics.plasm-phhep-phhep-th
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不稳定磁化等离子体中的轴子产生:一个活跃的暗物质源

Axion production in unstable magnetized plasmas: an active source of dark-matter

J. T. Mendonça, J. D. Rodrigues, H. Terças

摘要:

轴子是在标准模型的强扇区中恢复电荷宇称对称性的假设粒子,也是最有可能成为暗物质的候选者之一,众所周知,它会与等离子体相互作用。在最近的出版物[物理。{ \bf 120},181803(2018)],我们已经表明,如果等离子体动态响应轴子的存在,那么可以形成新的准粒子(轴子等离子体极化激元),这是新一代基于等离子体的检测技术的基础。在这项工作中,我们利用轴子等离子体杂交,积极产生轴子流磁化等离子体。我们表明,如果我们通过注入高能电子束(束等离子体不稳定性)的等离子体不稳定,可以实现可观的生产率每分钟几个轴子。产生的轴子可以通过Primakoff衰变为光子来检测。

英文摘要:

Axions, the hypothetical particles restoring the charge-parity symmetry in the strong sector of the Standard Model, and one of the most prone candidates for dark matter, are well-known to interact with plasmas. In a recent publication [Phys. Rev. Lett. {\bf 120}, 181803 (2018)], we have shown that if the plasma dynamically responds to the presence of axions, then a new quasi-particle (the axion plasmon-polariton) can be formed, being at the basis of a new generation of plasma-based detection techniques. In this work, we exploit the axion-plasmon hybridization to actively produce axions in streaming magnetized plasmas. We show that, if we make the plasma unstable via the injection of an energetic electron beam (beam-plasma instability), an appreciable production rate of few axions per minute can be achieved. The produced axions can then be detected by Primakoff decay into photons.

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