论文标题
深色光子暗物质没有Stueckelberg Mass
Dark Photon Dark Matter without Stueckelberg Mass
论文作者
论文摘要
我们研究了通过希格斯机制而不是恒定的stueckelberg质量产生质量的暗光子暗物质的场景。在这种构造中，黑暗扇区必然包含额外的自由度和相互作用，这会导致非平凡动态，包括热化，相变，宇宙弦生产。结果，与自发性对称性破坏的规模$ f $相比，Stueckelberg理论的预测经过了巨大修改，这取决于与曲率的耦合和通货膨胀$ H_i $的规模。我们特别发现，只有在参数空间的极端区域中，史长贝尔贝格黑暗光子的现象学才能再现。除非黑暗扇区大致不变，否则这些方案受到等外观扰动的强烈限制。
We study the scenario of dark photon Dark Matter where the mass is generated through the Higgs mechanism rather than the constant Stueckelberg mass. In this construction the dark sector contains necessarily extra degrees of freedom and interactions that lead to non-trivial dynamics including thermalization, phase transitions, cosmic string production. As a consequence the predictions of Stueckelberg theories are vastly modified, strongly depending on the couplings to curvature and on the scale of inflation $H_I$ compared to the scale $f$ of spontaneous symmetry breaking. We find in particular that only in extreme regions of parameter space the phenomenology of Stueckelberg dark photon is reproduced. These scenarios are strongly constrained by isocurvature perturbations unless the dark sector is approximately Weyl invariant.
