论文标题
基于典型的繁殖方案的高能天体中微子的风味过渡的物质影响
Matter effects on flavor transitions of high-energy astrophysical neutrinos based on typical propagation schemes
论文作者
论文摘要
在接下来的几十年中，高能量天文中微子（HAN）的风味比的精确测量将有希望。然后可以测试物质效应和新物理学对汉斯风味过渡的影响。在本文中，我们研究了对汉斯风味组成的物质影响。影响取决于中微子的传播方案和来源。我们考虑在绝热变化和恒定电子密度的环境中进行繁殖。在绝热的情况下，在电子密度10 $^{10} $ cm $^{ - 3} $的情况下，对汉斯汉斯风味的影响很明显，而在muon阻尼和中子衰减来源的情况下。相比之下，在恒定密度的情况下，即使在密度10 $^{18} $ cm $^{ - 3} $的密度下也可以忽略物质效应。因此，下微中微子望远镜的观察结果可能会对绝热繁殖方案设置严格的约束。
Precise measurements of the flavor ratio of high energy astronomical neutrinos (HANs) would be promising in the following decades. Then matter effects and new physics effects on the flavor transition of HANs could be tested. In this paper, we examine matter effects on the flavor composition of HANs. The effects are dependent on propagation schemes and sources of neutrinos. We consider propagations in environments with adiabatically varying and constant electron density. In the adiabatic case, the matter influence on the flavor composition of HANs at Earth is noticeable at the electron density 10$^{10}$ cm$^{-3}$ in the cases of muon damping and neutron decaying sources. In contrast, in the constant density case, the matter effect can be neglected even at the density 10$^{18}$ cm$^{-3}$. Thus, observations from next-generation neutrino telescopes may set stringent constraints on the adiabatic propagation scheme.
