论文标题
由紧凑磁化的天体物理物体产生的中微子的自旋旋转
Spin rotation of neutrinos produced by compact magnetized astrophysical objects
论文作者
论文摘要
我们研究了具有强磁场（例如磁铁）的紧凑型天体物理物体中中微子的传播。考虑了中微子自旋旋转和现实三种味道模型中的振荡。我们在物体附近的磁场中求解中微子演化方程，并获得所有可能的自旋味过渡的概率。假设中微子是在恒星内部产生的，则具有电子风味的左手状态，我们使用这些自旋味的过渡概率来估计中微子的分数，中微子在地球传播过程中会改变其螺旋性，从而变得不可观察。使用与偶极磁场的磁体模型，我们在此类天体物理物体中证明了左撇子和右中微子通量的各向异性。
We study the propagation of neutrinos from compact astrophysical objects with strong magnetic field, such as magnetars. Both neutrino spin rotation and oscillations in a realistic three-flavor model are taken into account. We solve the neutrino evolution equation in the magnetic field near the object and obtain the probabilities of all possible spin-flavor transitions. Assuming that neutrinos are produced in the interior of the star being in their left-handed state with electron flavor, we use these spin-flavor transition probabilities to estimate the fraction of neutrinos, which change their helicity during propagation to the Earth and thus become unobservable. Using the model of the magnetar with dipolar magnetic field, we demonstrate anisotropy in the left-handed and right-handed neutrino fluxes from such astrophysical objects.
