标题： 从共振到宽带搜索WISPy冷暗物质 显示英文标题

标题： From Resonant to Broadband Searches for WISPy Cold Dark Matter

摘要： 暗物质可能由轻的、非常弱相互作用的玻色子组成，在宇宙早期非热生成。 这种非常弱相互作用的瘦粒子（WISPs）的显著例子是轴子和隐藏光子。 这类粒子的直接探测实验基于将这些粒子转换为光子。 这可以通过共振腔实现，该腔具有共振增强，或者通过使用适当形状的反射表面来进行宽带搜索。 在本说明中，我们想阐明这两种设置之间的关系，并研究从共振搜索到宽带搜索的过渡。 这样就可以确定对于比生成光子波长大得多的腔体，非共振腔搜索的灵敏度。 显示英文摘要

摘要： Dark matter may consist of light, very weakly interacting bosons, produced non-thermally in the early Universe. Prominent examples of such very weakly interacting slim particles (WISPs) are axions and hidden photons. Direct detection experiments for such particles are based on the conversion of these particles into photons. This can be done in resonant cavities, featuring a resonant enhancement, or by using suitably shaped reflecting surfaces that allow for broadband searches. In this note we want to elucidate the relation between the two setups and study the transition from resonant to broadband searches. This then allows to determine the sensitivity of off-resonance cavity searches for cavities much larger than the wavelength of the generated photons.