论文标题
在中子丰富的稀土上需要当地核物理学的特征来解释太阳能$ r $ r $ - 过程丰度
The need for a local nuclear physics feature in the neutron-rich rare-earths to explain solar $r$-process abundances
论文作者
论文摘要
我们使用马尔可夫链蒙特卡洛（Monte Carlo）来预测形成观测到的太阳能$ r $ r $ - 过程稀有峰的质量。鉴于高度不同的天体流出和核输入，我们发现结果对$ r $ - 过程动力学（即反应和衰减之间的整体竞争）最敏感，并且鉴于相似的动力学，预测的质量趋势相似。我们表明，无论裂变是否沉积到稀土上，我们的算法都一致地预测了局部核物理学特征的需求，即在中子富含中子的灯笼中增强稳定性。
We apply Markov Chain Monte Carlo to predict the masses required to form the observed solar $r$-process rare-earth abundance peak. Given highly distinct astrophysical outflows and nuclear inputs, we find that results are most sensitive to the $r$-process dynamics (i.e. overall competition between reactions and decays), with similar mass trends predicted given similar dynamics. We show that regardless of whether fission deposits into the rare-earths or not, our algorithm consistently predicts the need for a local nuclear physics feature of enhanced stability in the neutron-rich lanthanides.
