论文标题
反应速率加权多层核反应网络
Reaction rate weighted multilayer nuclear reaction network
论文作者
论文摘要
核反应速率（$λ$）是核合成过程中的重要因素。一个多层定向加权的核反应网络，其中反应速率为重量，中子，质子，$^4 $ He和其余核作为不同反应层的标准，是基于Jina ReaClib数据库中的所有热核反应而建立的。我们的结果表明，随着恒星温度的升高（$ t_ {9} $），$ r $ layer网络上的核反应率的分布表明了从单峰分布到双峰分布的过渡。 $λ= [1,2.5 \ times10^{1}] $的$ r $ layer的核具有比$λ= [10^{11}，10^{13 {13}]的区域的更复杂的外向分布分布更复杂的，并且涉及的nuclei的数量是$ t_ {9} = 1 $ aint = 1 $ at = 1 $ at = 1 $ at = 1 $。 $λ= [1，2.5 \ times10^{1}] $ at $ t_ {9} = 3 $优先$（γ，p）$和$（{γ，α}）$对$ t_ {9} = 1 $ a the of the $β$β$β$β$β$ ex的产品的反应。这项工作为在恒星温度下在核反应网络上进行大数据分析提供了一种新颖的方式。
Nuclear reaction rate ($λ$) is a significant factor in the process of nucleosynthesis. A multi-layer directed-weighted nuclear reaction network in which the reaction rate as the weight, and neutron, proton, $^4$He and the remainder nuclei as the criterion for different reaction-layers is for the first time built based on all thermonuclear reactions in the JINA REACLIB database. Our results show that with the increase of the stellar temperature ($T_{9}$), the distribution of nuclear reaction rates on the $R$-layer network demonstrates a transition from unimodal to bimodal distributions. Nuclei on the $R$-layer in the region of $λ= [1,2.5\times10^{1}]$ have a more complicated out-going degree distribution than the one in the region of $λ= [10^{11},10^{13}]$, and the number of involved nuclei at $T_{9} = 1$ is very different from the one at $T_{9} = 3$. The redundant nuclei in the region of $λ= [1, 2.5\times10^{1}]$ at $T_{9} = 3$ prefer $(γ,p)$ and $({γ,α})$ reactions to the ones at $T_{9}=1$, which produce nuclei around the $β$ stable line. This work offers a novel way to the big-data analysis on nuclear reaction network at stellar temperatures.
