论文标题
使用ENDF/B-VIII.0和TERTL-2015库确定太阳系R-Process丰度
Determination of Solar System R-Process Abundances using ENDF/B-VIII.0 and TENDL-2015 libraries
论文作者
论文摘要
最近对二进制中子星合并（GW170817）的多通间剂检测使天体物理群落充满活力，并鼓励进一步研究确定核物理学可观察到的物体。对宇宙中原子核的全面研究为研究这些天体物理现象提供了一个机会，并获取有关恒星核合成过程的互补信息，可以使用最新的核数据进行验证。 评估的核数据文件（ENDF）库包含与天体物理学，裂变产率和衰减数据相关的能量范围内反应横截面的完整集合。这些数据收集已在核科学，工业和国家安全应用中全球使用。探索ENDF/B-VIII.0和TALYS评估了核数据库（TERTL-2015），这对核天体物理学目的（TERDL-2015）非常感兴趣，并将发现与恒星中核合成的天体合成的Karlsruhe天体数据库进行了比较（Kadonis）。 使用ENDF/B-VIII.0和TERTL-2015评估的数据集计算了麦克斯韦尔平均横截面（MAC）和天体物理反应率。计算出的横截面与太阳系丰度结合，并使用恒星核合成的经典模型拟合。天体物理的快速和慢速中子捕获，$ r $ - 和$ s $ - 过程，分别从当前数据中获得了丰度，并与可用值进行了比较。对MAC的进一步分析揭示了潜在的评估库数据缺陷以及对新测量的强烈需求。目前的结果表明，评估的图书馆和核工业与研究工作之间的互惠关系的巨大核天体物理学潜力。
Recent multi-messenger detection of the binary neutron star merger (GW170817) energized the astrophysical community and encouraged further research for determination of nuclear physics observables. Comprehensive studies of atomic nuclei in the cosmos provide an opportunity for investigating these astrophysical phenomena and acquiring complementary information on stellar nucleosynthesis processes that can be verified using the latest nuclear data. Evaluated Nuclear Data File (ENDF) libraries contain complete collections of reaction cross sections over the energy range relevant to astrophysics, fission yields and decay data. These data collections have been used worldwide in nuclear science, industry and national security applications. There is great interest in exploring the ENDF/B-VIII.0 and TALYS Evaluated Nuclear Data Library (TENDL-2015) for nuclear astrophysics purposes and comparing findings with the Karlsruhe Astrophysical Database of Nucleosynthesis in Stars (KADoNiS). The Maxwellian-averaged cross sections (MACS) and astrophysical reaction rates have been calculated using the ENDF/B-VIII.0 and TENDL-2015 evaluated data sets. The calculated cross sections were combined with the solar system abundances and fitted using the classical model of stellar nucleosynthesis. Astrophysical rapid- and slow-neutron capture, $r$- and $s$-process, respectively, abundances were obtained from present data and compared with available values. Further analysis of MACS reveals potential evaluated libraries data deficiencies and a strong need for new measurements. The current results demonstrate a large nuclear astrophysics potential of evaluated libraries and mutually beneficial relations between nuclear industry and research efforts.
