论文标题
在耦合的准粒子随机相近似和Hauser-Feshbach方法中脱离β的裂变
Beta-delayed fission in the coupled Quasi-particle Random Phase Approximation plus Hauser-Feshbach approach
论文作者
论文摘要
使用Los Alamos耦合的准粒子随机相位近似以及Hauser-Feshbach（QRPA+HF）方法，计算了重型，富含中子的核的β$ delemon发射和$β$延迟的裂变（$β$ df）概率。在该模型中，化合物核最初由$β$ - 订单填充，并在中子之间的竞争，$γ$ - 砂和裂变之间进行后续统计衰减。这些计算的主要输出包括分支比率以及中子和$γ$ -Ray光谱。我们发现一个相对较大的重型核素区域，其中$β$ df的概率接近100％。对于中子滴灌附近的一部分核，中子排放和裂变的可能性都很大，这导致可能需要多Chance $β$ df（MC-$β$ DF）。我们对未来的实验运动可以探讨的前瞻性中子核评论，并在补充材料中提供ASCII格式的完整分支比例，以便在各种应用中使用。
Beta-delayed neutron emission and $β$-delayed fission ($β$df) probabilities were calculated for heavy, neutron-rich nuclei using the Los Alamos coupled Quasi-Particle Random Phase Approximation plus Hauser-Feshbach (QRPA+HF) approach. In this model, the compound nucleus is initially populated by $β$-decay and is followed through subsequent statistical decays taking into account competition between neutrons, $γ$-rays and fission. The primary output of these calculations includes branching ratios along with neutron and $γ$-ray spectra. We find a relatively large region of heavy nuclides where the probability of $β$df is near 100%. For a subset of nuclei near the neutron dripline, delayed neutron emission and the probability to fission are both large which leads to the possibility of multi-chance $β$df (mc-$β$df). We comment on prospective neutron-rich nuclei that could be probed by future experimental campaigns and provide a full table of branching ratios in ASCII format in the supplemental material for use in various applications.
