Abstract Evaluated experimental data are presented for 13 known mass 189 nuclides (Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Tl, Pb, Bi, Po). Since the 2003Wu02 publication, structure and decay data from 25 new and primary publications have been incorporated in the current work, while adding a new 189 Hf nuclide. New data have been added for all nuclides except 189 Au and 189 Hg. Moreover, several previous datasets were modified for β -decay Q values and conversion coefficients even when no new publications appeared since 2003Wu02. In spite of large amounts of data available for A=189 nuclides, several deficiencies remain, which are pointed out below in the hope that further experimental work may improve our knowledge of structure of these nuclides. For 189 Hf and 189 Ta, ground-state half-lives, and their decay schemes are unknown. An isomer in 189 Ta has recently been established but its decay characteristics are unknown, even though several gamma rays were connected with its decay. No excited states are known in 189 W and only one in 189 Po. The decay scheme of 189 W is known poorly with most gamma rays left as unassigned. The decay schemes of 189 Au and 189 Pb g.s. suffer from incompleteness, while those for the g.s. and isomer of 189 Tl are almost absent. The decay schemes of g.s. and isomer of 189 Hg are very complex as apparent from the study by 1996Wo04. Evaluators feel that these two decay schemes could be improved with modern gamma-ray detector arrays. While several isomers are known in many of the A=189 nuclides, there is in general lack of information of level half-lives, thus limiting the knowledge of transition probabilities. High-spin structures, including SD bands in 189 Hg and 189 Tl, are known in 189 Re, 189 Ir, 189 Pt, 189 Au, 189 Hg, 189 Tl, 189 Pb and 189 Bi. Single-particle transfer data are available for 189 Re, 189 Os, and 189 Pt; and two-neutron transfer data for 189 Ir.

中文翻译：

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A=189 的核数据表

摘要 提供了 13 种已知质量的 189 种核素（Hf、Ta、W、Re、Os、Ir、Pt、Au、Hg、Tl、Pb、Bi、Po）的评估实验数据。自 2003Wu02 出版物以来，来自 25 个新的和主要出版物的结构和衰变数据已被纳入当前的工作，同时添加了一个新的 189 Hf 核素。已为除 189 Au 和 189 Hg 之外的所有核素添加了新数据。此外，即使自 2003Wu02 以来没有出现新的出版物，一些先前的数据集也针对 β-衰减 Q 值和转换系数进行了修改。尽管 A=189 核素有大量可用数据，但仍存在一些不足之处，下面指出这些不足之处，希望进一步的实验工作可以提高我们对这些核素结构的了解。对于 189 Hf 和 189 Ta，基态半衰期及其衰变方案未知。最近确定了 189 Ta 的异构体，但它的衰变特征未知，即使有几种伽马射线与它的衰变有关。在 189 W 中没有已知的激发态，在 189 Po 中只有一个。189 W 的衰减方案知之甚少，大多数伽马射线都未分配。189 Au 和 189 Pb gs 的衰变方案不完整，而 189 Tl 的 gs 和异构体的衰变方案几乎不存在。从 1996Wo04 的研究中可以明显看出，gs 和 189 Hg 的异构体的衰减方案非常复杂。评估人员认为这两种衰减方案可以通过现代伽马射线探测器阵列进行改进。虽然在许多 A=189 核素中已知有几种异构体，但通常缺乏能级半衰期的信​​息，因此限制了对跃迁概率的了解。高自旋结构，包括 189 Hg 和 189 Tl 中的 SD 带，在 189 Re、189 Ir、189 Pt、189 Au、189 Hg、189 Tl、189 Pb 和 189 Bi 中已知。提供 189 Re、189 Os 和 189 Pt 的单粒子转移数据；和 189 Ir 的双中子转移数据。