论文标题
从恒星和合并弹射器中的窒息喷射的高能中微子的振荡
Oscillation of high-energy neutrinos from choked jets in stellar and merger ejecta
论文作者
论文摘要
我们介绍了一项关于来自两个不同环境的高能中微子振荡的综合研究：蓝色超级祖细胞可能含有低功率伽马射线爆发（GRB）喷气机（GRB）Jets和中子星星合并，它们可能与短伽马射线爆发有关。我们结合了辐射约束，为非热中微子的产生提供必要条件，并解释了射流的时间演变，这使我们能够更准确地处理中微子振荡。对于大量的恒星祖细胞，恒星内中微子注射会导致1 TEV -10 TEV中的非绝热振荡模式，并且在风味比方面也可见。对于中子星的合并弹出，我们发现在100 GEV -10 TEV区域中的行为类似，振荡可能会导致$ν_e$多余的超过1 TEV。这些特征使我们能够探测长和短GRB的祖细胞，可以通过未来的中微子检测器进行精确的风味比测量。我们还讨论了通过IceCube测得的弥漫性中微子通量的潜在贡献，并找到允许cho住的低功率GRB喷气机的参数集，以考虑10 TEV -100 TEV范围内中微子通量，而不会违反现有的约束。
We present a comprehensive study on oscillation of high-energy neutrinos from two different environments: blue supergiant progenitors that may harbor low-power gamma-ray burst (GRB) jets and neutron star merger ejecta that would be associated with short gamma-ray bursts. We incorporate the radiation constraint that gives a necessary condition for nonthermal neutrino production, and account for the time evolution of the jet, which allows us to treat neutrino oscillation in matter more accurately. For massive star progenitors, neutrino injection inside the star can lead to nonadiabatic oscillation patterns in the 1 TeV - 10 TeV and is also visible in the flavor ratio. For neutron star merger ejecta, we find a similar behavior in the 100 GeV - 10 TeV region and the oscillation may result in a $ν_e$ excess around 1 TeV. These features, which enable us to probe the progenitors of long and short GRBs, could be seen by future neutrino detectors with precise flavor ratio measurements. We also discuss potential contributions to the diffuse neutrino flux measured by IceCube, and find parameter sets allowing choked low-power GRB jets to account for the neutrino flux in the 10 TeV - 100 TeV range without violating the existing constraints.
