论文标题
改善宇宙学的界限，用于微调的kev无菌中微子的锯齿状机制
Improved cosmological bounds for a fine-tuned see-saw mechanism of keV sterile neutrinos
论文作者
论文摘要
考虑到量规模型SU（2）_l X U（1）通过右手无菌主要中微子扩展Lepton部门，我们将6 x 6光（活性）和无菌中微子的完整矩阵的“最小参数混合场景”区分开，此外还取决于实验中的物理参数，仅在实验中进行了群体的群体。对于这种情况，提供了改善的宇宙学界限，这是由于无菌中微子的寿命以及无菌中微子暗物质携带的能量的比例。
Considering the gauge model SU(2)_L x U(1) with the extension of the lepton sector by right-handed sterile Majorana neutrinos, we distinguish a "minimal parametric mixing scenario" for a complete matrix of 6 x 6 light (active) and sterile neutrinos, which depends, in addition to experimentally measured physical parameters, only on the masses of sterile neutrinos. For such a scenario, improved cosmological bounds are provided, resulting from the lifetime of sterile neutrinos and the fraction of energy carried by sterile neutrino dark matter.
