论文标题
部分可观测时空混沌系统的无模型预测
Vector dark matter production from inflation with symmetry breaking
论文作者
论文摘要
We present a scenario of vector dark matter production from symmetry breaking at the end of inflation.在该模型中，与暗光子的量子波动相关的累积能量密度解释了暗物质的当前能量密度。充气是一个真实的标量场，而在黑暗量规场下方充电的重型复杂标量场（例如混合膨胀的瀑布）被充电。在充气结束时重场变速后，迅速朝其全球最小值滚动后，深色光子通过希格斯机制获得了质量。为了防止在通货膨胀期间载体场能密度的衰减，我们引入了充气和量规场之间的耦合，使能量被泵送到黑暗扇区。该设置可以生成可观察到的暗物质丰度，以使深色光子的质量范围范围内，并将重新温度的温度约为$ 10^{12} $ GEV。 The model predicts the formation of cosmic strings at the end of inflation with the tensions which are consistent with the CMB upper bounds.
We present a scenario of vector dark matter production from symmetry breaking at the end of inflation. In this model, the accumulated energy density associated with the quantum fluctuations of the dark photon accounts for the present energy density of dark matter. The inflaton is a real scalar field while a heavy complex scalar field, such as the waterfall of hybrid inflation, is charged under the dark gauge field. After the heavy field becomes tachyonic at the end of inflation, rolling rapidly towards its global minimum, the dark photon acquires mass via the Higgs mechanism. To prevent the decay of the vector field energy density during inflation, we introduce couplings between the inflaton and the gauge field such that the energy is pumped to the dark sector. The setup can generate the observed dark matter abundance for a wide range of the dark photon's mass and with the reheat temperature around $10^{12}$ GeV. The model predicts the formation of cosmic strings at the end of inflation with the tensions which are consistent with the CMB upper bounds.
