论文标题
两部分暗物质的互补探针
Complementary Probes of Two-component Dark Matter
论文作者
论文摘要
我们研究了$ Z_2 \ times Z'2 $对称3-HIGGS Doublet模型（3HDM），其中两个双重运动会是惰性的，并且一个是活跃的（因此在文献中表示为I（2+1）HDM），产生了一个两种组分的暗物质（DM）部门。这两个DM候选者成为不同惰性双重双重的最轻标量成分，每个候选者都具有不同的离散奇偶校验，并合作以达到正确的遗物密度。当两个DM候选物之间存在足够的质量差异时，可以测试当前和/或即将到来的设施中的存在，因为相应的质量通常在Electroweak量表上。具体而言，在直接检测实验中，核后坐力可以探测光DM分量，而在间接检测实验中，重型DM分量通过光子通量出现。实际上，两个实验设置可以实现的DM质量敏感性应该足以建立两个不同的DM信号。在对我们I（2+1）HDM结构中出现的真空结构的稳定性条件的彻底分析的情况下，已获得该结果，以确保采用的模型配置是物理的，并且来自空间和地面实验收集的数据的最新约束，从而确保了辅助和质谱的现象学可行性。
We study a $Z_2 \times Z'_2$ symmetric 3-Higgs Doublet Model (3HDM), wherein two of the doublets are inert and one is active (thus denoted in literature as I(2+1)HDM), yielding a two-component Dark Matter (DM) sector. The two DM candidates emerge as the lightest scalar component of a different inert doublet, each with a different odd discrete parity, and cooperate to achieve the correct relic density. When a sufficient mass difference exists between the two DM candidates, it is possible to test the presence of both in present and/or forthcoming facilities, as the corresponding masses are typically at the electroweak scale. Specifically, the light DM component can be probed by the nuclear recoil energy in direct detection experiments while the heavy DM component appears through the photon flux in indirect detection experiments. In fact, the DM mass sensitivity that the two experimental set-ups can achieve should be adequate to establish the presence of two different DM signals. This result has been obtained in the presence of a thorough theoretical analysis of the stability conditions of the vacuum structure emerging from our I(2+1)HDM construct, ensuring that the model configurations adopted are physical, and of up-to-date constraints coming from data collected by both space and ground experiments, ensuring that the coupling and mass spectra investigated are viable phenomenologically.
