论文标题
用血浆卤素探测深色光子
Probing dark photons with plasma haloscopes
论文作者
论文摘要
早期宇宙中产生的暗光子（DPS）是动机的暗物质（DM）候选者。我们表明，最近提出的可调等离子体卤素对DP搜索特别有利。尽管中等效应在常规搜索中抑制了DP信号，但血浆卤素类作用使用超材料，通过将其质量与可调等离子体频率相匹配，从而使DP吸收谐振，从而实现了有效的等离子体体产生。使用热场理论，我们确认了检测器内中等内膜内的吸收率。该方案允许竞争性地探索DP DM参数空间的很大一部分，而DP质量范围为$ 6-400 $ $ $ $ $ $ EV。如果观察到信号，则观察信号的每日或年度调制对于明确识别信号是由于DP DM引起的至关重要的，并且可以阐明生产机制。
Dark photons (DPs) produced in the early Universe are well-motivated dark matter (DM) candidates. We show that the recently proposed tunable plasma haloscopes are particularly advantageous for DP searches. While in-medium effects suppress the DP signal in conventional searches, plasma haloscopes make use of metamaterials that enable resonant absorption of the DP by matching its mass to a tunable plasma frequency and thus enable efficient plasmon production. Using thermal field theory, we confirm the in-medium DP absorption rate within the detector. This scheme allows to competitively explore a significant part of the DP DM parameter space in the DP mass range of $6-400$ $μ$eV. If a signal is observed, the observation of a daily or annual modulation of the signal would be crucial to clearly identify the signal as due to DP DM and could shed light on the production mechanism.
