论文标题
探测EV级无菌中微子与弥漫性超新星中微子背景的秘密相互作用
Probing secret interactions of eV-scale sterile neutrinos with the diffuse supernova neutrino background
论文作者
论文摘要
虽然“活跃”中微子的三种口味与误差棒内的混合角度结果一致，但除标准模型以外的物理可能会引起异常，可以容纳第四个主要的“无菌”中微子中微子物种，具有EV量表质量，并具有带有ev的混合角度，具有$θ_0\ simeq 0.1 $的主动中微子。我们描述了一种具有EV级无菌中微子的情况，该中微子通过新的量规矢量玻色子（一种“秘密”介体$ ϕ $）进行了自我互动。我们表明，它们通过与主动中微子混合在早期宇宙中的产生与宇宙微波背景时期中的大爆炸核合成和自由流的约束是一致的。对于$ m_ϕ = 4-8 $ keV和无菌中微子耦合$ g_s = 10^{ - 4} $，我们发现弥漫性超新星中微子与遗物无菌中微子的共振相互作用在传播到地球中的无菌中微子会导致中微子磁中心磁中心磁体的光谱。我们说明了对应的（Hyper-Kamiokande）检测器中的相应（反）中微子事件分布。
While three flavors of "active" neutrinos are consistent with mixing angle results within error bars, there are anomalies may be hints of physics beyond the standard model that can accommodate a fourth mostly "sterile" neutrino species with an eV-scale mass and a mixing angle with active neutrinos of order $θ_0\simeq 0.1$. We describe a scenario with eV-scale sterile neutrinos that have self-interactions via a new gauge vector boson, a "secret" mediator $ϕ$. We show that their production in the early Universe via mixing with active neutrinos is consistent with Big Bang Nucleosynthesis and free-streaming constraints in the Cosmic Microwave Background epoch. For $M_ϕ=4-8$ keV and sterile neutrino coupling $g_s=10^{-4}$, we find that resonant interactions of diffuse supernova neutrinos with relic sterile neutrinos in transit to the Earth would cause spectral dips in the neutrino flux. We illustrate the corresponding (anti-)neutrino event distributions as a function of energy in the DUNE (Hyper-Kamiokande) detector.
