论文标题
仔细观察Seesaw-Dark物质的通讯
A closer look at the seesaw-dark matter correspondence
论文作者
论文摘要
在较早的工作中，我们表明，在标准模型的非常简单的中微子门户样本中，可以在暗物质物理学和控制中性中微子质量起源的SeeSAW参数之间实现一对一的对应关系。值得注意的是，当通过冻结和相对论冻结产生暗物质时，这可能会发生。在本文中，我们对此类情况进行了详细的现象学研究。具体而言，我们找到了对应关系有效的中微子门户耦合的允许区域。我们进一步从各种观察和理论考虑中限制了参数空间。在此中，我们得出双重冷冻粒子的分布函数，以便更准确地计算其自由流的地平线。
In an earlier work, we showed that in very simple neutrino portal-like extensions of the Standard Model it is possible to achieve a one-to-one correspondence between dark matter physics and the seesaw parameters controlling the genesis of neutrino masses. Notably, this can occur both when the dark matter is produced via freeze-in and relativistic freeze-out. In this article, we carry out a detailed phenomenological study of such scenarios. Specifically, we find the allowed regions for the neutrino portal coupling within which the correspondence is valid. We further constrain the parameter space from various observational and theoretical considerations. Within this, we derive the distribution function of a doubly frozen-in particle in order to more accurately compute its free-streaming horizon.
