论文标题
超对称$ν$ -inflaton暗物质
Supersymmetric $ν$-Inflaton Dark Matter
论文作者
论文摘要
我们介绍了在参考文献中研究的通货膨胀和暗物质的统一模型的超对称扩展。 ARXIV：1811.02302。该方案是基于对右手中微子对的充气场的不完全衰减。通过在充气和右撇子（S）中微子上施加离散的互换对称性，可以确保当今全球最小值的充气场的稳定性，同时仍然允许其在通货膨胀后部分腐烂并重新加热宇宙。通货膨胀预测，BBN的界限以及获得充气暗物质候选者的合适DM丰度的兼容性通常需要其与中微子领域的耦合值大量值，我们使用超对称性来保护EftraTon免受潜在危险的大型辐射校正的侵害，这可能会破坏其潜力所需的平坦性。此外，重新加热期间，充气量现在将主要腐烂到sneutrinos，这又会引起由标准模型颗粒制成的热浴，又会引起加元颗粒的热浴。在所有涉及的合作伙伴的演变之后，我们已经通过分析重新加热过程进行了分析，并确定了最终暗物质候选者参数空间中的不同制度。像往常一样，这可以是w imp状的充气颗粒或振荡的冷凝物，但是我们为fipl样候选者找到了一种新颖的状态。
We present the supersymmetric extension of the unified model for inflation and Dark Matter studied in Ref. arXiv:1811.02302. The scenario is based on the incomplete decay of the inflaton field into right-handed (s)neutrino pairs. By imposing a discrete interchange symmetry on the inflaton and the right-handed (s)neutrinos, one can ensure the stability of the inflaton field at the global minimum today, while still allowing it to partially decay and reheat the Universe after inflation. Compatibility of inflationary predictions, BBN bounds and obtaining the right DM abundance for the inflaton Dark Matter candidate typically requires large values of its coupling to the neutrino sector, and we use supersymmetry to protect the inflaton from potentially dangerous large radiative corrections which may spoil the required flatness of its potential. In addition, the inflaton will decay now predominatly into sneutrinos during reheating, which in turn give rise both to the thermal bath made of Standard Model particles, and inflaton particles. We have performed a through analyses of the reheating process following the evolution of all the partners involved, identifying the different regimes in the parameter space for the final Dark Matter candidate. This as usual can be a WIMP-like inflaton particle or an oscillating condensate, but we find a novel regime for a FIMP-like candidate.
