TY - DATA T1 - Lifetime (in ms) and transition rate (in s−1) of the hyperfine level of 3d94s 3D3 either with or without nuclear quadrupole HFI PY - 2013/06/21 AU - Weijie Du AU - Martin Andersson AU - Ke Yao AU - Tomas Brage AU - Roger Hutton AU - Yaming Zou UR - https://iop.figshare.com/articles/dataset/_Lifetime_in_ms_and_transition_rate_in_s_sup_1_sup_of_the_hyperfine_level_of_3d_sup_9_sup_4s_sup_3_s/1012098 DO - 10.6084/m9.figshare.1012098.v1 L4 - https://ndownloader.figshare.com/files/1479920 KW - decay channel KW - GRASPVU package KW - Notation f KW - transition rate KW - level 3 KW - 185 Re KW - quadrupole moment KW - quadrupole transition channel KW - octupole transition rates show KW - quadrupole transition rates KW - quadrupole HFI KW - Notation Q KW - Q values KW - lifetime KW - 181 Ta KW - 187 Re KW - Extreme cases KW - Atomic Physics KW - Molecular Physics N2 - Table 4. Lifetime (in ms) and transition rate (in s−1) of the hyperfine level of 3d94s 3D3 either with or without nuclear quadrupole HFI. Notation f denotes the natural abundance of a different isotope with nuclear spin I and µ denotes the magnetic dipole moment in nuclear magnetons. Notation Q denotes the nuclear electric quadrupole moment in barns. Values of I, µ and Q are referred from [27], where the uncertainties of µ and Q values are quoted in parentheses. The values of f are referred from [28]. All lifetimes are given in ms (a[b] = a × 10b). Abstract Based on the multi-configuration Dirac–Hartree–Fock method and using the GRASPVU package, a theoretical investigation was performed to study the lifetimes of hyperfine levels of the first excited level 3d94s 3D3 in Ni-like ions (Z = 72–79) for all stable isotopes with nuclear spin. Comparisons between hyperfine-induced electric quadrupole transition rates and the pure magnetic octupole transition rates show that the extra electric quadrupole transition channel caused by the nuclear magnetic dipole and electric quadrupole hyperfine interaction is important for most hyperfine levels in each individual ion. Lifetimes of most hyperfine levels are sensitive to this extra decay channel. Extreme cases are found in 181Ta, 185Re and 187Re, where lifetimes of some hyperfine levels are shortened by more than an order of magnitude. ER -