吸积盘附近物质-中微子共振的多角度计算
Multi-angle calculation of the matter-neutrino resonance near an accretion disk
摘要：
本文从多角度数值研究了吸积盘附近的物质-中微子共振。我们假设热分布的中微子和反中微子场发射的二维磁盘是均匀的和各向同性的，电子被假定为在恒定的密度。我们比较了这种计算的结果，使用单角近似得到的。通过逐步放宽单角近似，研究了吸积盘周围环境中物质-中微子共振的鲁棒性。我们发现，多角度的结果在本简化模型不支持一个强大的共振机制所建议的单角度治疗。我们还讨论了在这种情况下，物质中微子共振可能是重要的，在未来的研究。
英文摘要：
We perform a numerical study of the matter-neutrino resonance in a multi-angle calculation in the vicinity of an accretion disk. We assume thermally distributed neutrino and anti-neutrino fields emitted by two-dimensional disk that is homogeneous and isotropic; the electrons are assumed to be at constant density. We compare the the result of this computation to that obtained using single-angle approximation. We investigate the robustness of matter-neutrino resonance in environment surrounding accretion disks by progressively relaxing the single angle approximation. We find that the multi-angle results in the present simplified model do not support a robust resonance mechanism as suggested by the single angle treatment. We also discuss the context under which matter-neutrino resonance may be important in future studies.
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