论文标题
黑暗部门的起源和小型群异常
Dark sector origin of the KOTO and MiniBooNE anomalies
论文作者
论文摘要
我们提出了一个深色扇形模型，该模型将繁殖Koto，Miniboone和Muon异常磁矩异常。黑暗区域由一个轻标量单元$ s $组成，该$ s $与稍大的无菌中微子与活跃的中微子混合在一起。标量通过Yukawa耦合到标准模型费米，并通过高维耦合到光子。 koto信号是改变风味的企鹅工艺$ k_l \toπ^0 s $的结果，其次是$ s $对中微子的衰减。在小蛋白腐烂的中微子核中微子散射中产生的无菌中微子会腐烂到活跃的中微子和$ s $，$ s $，它会在电磁上腐烂，并在低能量下产生过量的事件。
We present a dark sector model that reproduces the KOTO, MiniBooNE and muon anomalous magnetic moment anomalies. The dark sector is comprised of a light scalar singlet $S$ that has a large coupling to a slightly heavier sterile neutrino that mixes with the active neutrinos. The scalar couples to standard model fermions via Yukawa couplings, and to photons via a higher-dimensional coupling. The KOTO signal is a result of the flavor-changing penguin process $K_L \to π^0 S$ followed by the decay of $S$ to neutrinos. The sterile neutrino produced in neutrino-nucleus scattering at MiniBooNE decays to an active neutrino and $S$, which decays electromagnetically and creates an event excess at low energies.
