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arXiv 1801.06962physics.ins-det
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晕镜微波腔的对称破缺

Symmetry Breaking in Haloscope Microwave Cavities

I. Stern, N. Sullivan, D. Tanner

摘要:

轴子晕圈探测器使用由磁场渗透的微波腔来谐振由于逆普里马科夫效应而从轴子转换的光子。检测器的灵敏度与腔的搜索模式的形状因子成比例。横向对称性破缺被用来调整搜索模式,以扫描一系列的轴子质量。然而,数值分析表明,横向和纵向对称性破缺降低了搜索模式的灵敏度。模拟还表明,纵向对称性破缺导致其他不希望的后果,如模式混合和模式拥挤。这些结果使轴子暗物质搜索复杂化,并进一步降低了探测器的搜索能力。本文对晕圈镜微波谐振腔的对称性破缺进行了数值分析。

英文摘要:

Axion haloscope detectors use microwave cavities permeated by a magnetic field to resonate photons that are converted from axions due to the inverse Primakoff effect. The sensitivity of a detector is proportional to the form factor of the cavity's search mode. Transverse symmetry breaking is used to tune the search modes for scanning across a range of axion masses. However, numerical analysis shows transverse and longitudinal symmetry breaking reduce the sensitivity of the search mode. Simulations also show longitudinal symmetry breaking leads to other undesired consequences like mode mixing and mode crowding. The results complicate axion dark matter searches and further reduce the search capabilities of detectors. The findings of a numerical analysis of symmetry breaking in haloscope microwave cavities are presented.

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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