论文标题
约束微弱的中微子与超轻暗物质的相互作用
Constraining Feeble Neutrino Interactions with Ultralight Dark Matter
论文作者
论文摘要
如果超轻$（\ ll $ eV），玻色粒暗夫妇右手中微子，主动中微子质量和混合角度取决于环境暗物质密度。当与狄拉克质量相比，当暗物质背景引起的中微子主要质量很小时，中微子是“伪dirac”费米子，在几乎变性的活性和无菌状态之间经历了振荡。 我们为这种情况提供了完整的宇宙学历史，并从各种陆地和宇宙学可观察物中找到了严重的限制。对于“模糊”暗物质制度中的标量质量（$ \ sim 10^{ - 20} $ eV），这些限制排除了订单$ 10^{ - 30} $的耦合，与Yukawa相互作用相当于与中子和超越量表之间的强力限制的Yukawa相互作用，并在量表中超过了等于等分的量表中的量表中的时间变化。
If ultralight $(\ll$ eV), bosonic dark matter couples to right handed neutrinos, active neutrino masses and mixing angles depend on the ambient dark matter density. When the neutrino Majorana mass, induced by the dark matter background, is small compared to the Dirac mass, neutrinos are "pseudo-Dirac" fermions that undergo oscillations between nearly degenerate active and sterile states. We present a complete cosmological history for such a scenario and find severe limits from a variety of terrestrial and cosmological observables. For scalar masses in the "fuzzy" dark matter regime ($\sim 10^{-20}$ eV), these limits exclude couplings of order $10^{-30}$, corresponding to Yukawa interactions comparable to the gravitational force between neutrinos and surpassing equivalent limits on time variation in scalar-induced electron and proton couplings.
