论文标题
可比较的暗物质和重型深色区域
Comparable dark matter and baryon abundances with a heavy dark sector
论文作者
论文摘要
我们提出了一个场景，该方案解释了暗物质（DM）和重子的可比性，而相应的粒子质量中没有任何巧合。在这里，DM对应于隐藏的MSSM样黑暗扇区中的重“深色重子”，在该区域中，超对称性断裂尺度可能比可见扇区大几个数量级。在这两个部门中，通过Affleck-Dine机制产生了Baryon不对称性，而较小的深色BARYON与透镜比部分补偿了较大的深色Baryon质量，从而在两个扇区中产生相似的密度。较大的质量层次结构自然会导致这些隔离部门的不对称再加热。此外，这种情况预测了不相关的DM和BARYON等膜扰动。
We propose a scenario that explains the comparable abundances of dark matter (DM) and baryons without any coincidence in the corresponding particle masses. Here, DM corresponds to heavy "dark baryons" in a hidden MSSM-like dark sector, where the supersymmetry breaking scale can be several orders of magnitude larger than in the visible sector. In both sectors a baryon asymmetry is generated via the Affleck-Dine mechanism, and the smaller dark baryon-to-entropy ratio partially compensates the larger dark baryon masses to give similar densities in the two sectors. The large mass hierarchy also naturally results in an asymmetric reheating of these sequestered sectors. Moreover, this scenario predicts uncorrelated DM and baryon isocurvature perturbations.
