论文标题
爆炸性核合成，在核心 - 循环超新星中具有快速中微子味的转化率
Explosive nucleosynthesis with fast neutrino-flavor conversion in core-collapse supernovae
论文作者
论文摘要
快速中微子培训转化率（FFC）是核心偏离超新星（CCSN）理论中可能改变游戏的成分。在本文中，我们通过将FFC与以参数方式结合到核合成计算为核合成计算的不对称中微子发射的影响来研究FFC对爆炸性核合成的影响。我们发现，弹出组合物不受FFC的明显影响，而元素的元素比CO较轻，而这些元素的影响受FFC的影响。我们还发现，FFC的作用取决于中微子发射的不对称程度（$ m _ {\ rm asy} $）和中微子味混合的程度。 FFC的影响不是单调对$ m _ {\ rm asy} $;与没有FFC相比，较高的$ m _ {\ rm asy} $的更高$ m _ {\ rm asy} $的变化增加了，而FFC对非常大的不对称中微子排放的核合成影响很小（$ \ gtrsim 30 \％\％\％$）。我们的结果表明，在大多数情况下，FFC促进了中子富含中子的射出的产生，尽管如果抗中性抗中微子的抗中微子更剧烈，则它会使弹出更富含质子。这种趋势的关键要素是中微子吸收，其对核合成的影响可以通过简单的诊断来量化。
Fast neutrino-flavor conversion (FFC) is a possible game-changing ingredient in core-collapse supernova (CCSN) theory. In this paper, we examine the impact of FFC on explosive nucleosynthesis by including the effects of FFC in conjunction with asymmetric neutrino emission into nucleosynthetic computations in a parametric way. We find that the ejecta compositions are not appreciably affected by FFC for elements lighter than Co, while the compositions are influenced by FFC for the heavier elements. We also find that the role of FFC varies depending on the asymmetric degree of neutrino emission ($m_{\rm asy}$) and the degree of neutrino-flavor mixing. The impact of FFC is not monotonic to $m_{\rm asy}$; The change in the ejecta composition increases for higher $m_{\rm asy}$ up to $\sim 10\%$ compared with that without FFC, whereas FFC has little effect on the nucleosynthesis in very large asymmetric neutrino emission ($\gtrsim 30 \%$). Our results suggest that FFC facilitates the production of neutron-rich ejecta in most cases, although it makes the ejecta more proton-rich if anti-neutrino conversion is more vigorous than that of neutrino. The key ingredient accounting for this trend is neutrino absorption, whose effects on nucleosynthesis can be quantified by simple diagnostics.
