论文标题
Millicharged文物揭示了无质量的深色光子
Millicharged Relics Reveal Massless Dark Photons
论文作者
论文摘要
众所周知，很难检测无质量的动力学混合暗光子，因为可以通过真空中的场重新定义去除这种混合的效果。在这项工作中，我们研究了在这种深色电磁作用下直接充电的宇宙遗物的存在下检测无质量暗光子的前景。这种毫米的颗粒以暗物质或暗辐射的形式产生有效的暗光子质量，从而在早期宇宙中驱动光子到黑暗的光子振荡。我们还研究了此类模型的前景，以减轻大量深色光子上现有的宇宙学限制，从而使用精确的地面探针扩大了该参数空间直接测试的动机。
The detection of massless kinetically-mixed dark photons is notoriously difficult, as the effect of this mixing can be removed by a field redefinition in vacuum. In this work, we study the prospect of detecting massless dark photons in the presence of a cosmic relic directly charged under this dark electromagnetism. Such millicharged particles, in the form of dark matter or dark radiation, generate an effective dark photon mass that drives photon-to-dark photon oscillations in the early universe. We also study the prospect for such models to alleviate existing cosmological constraints on massive dark photons, enlarging the motivation for direct tests of this parameter space using precision terrestrial probes.
