Hyperfine structure of odd-parity levels in⁹¹ZrI

Abstract

Hyperfine structures have been investigated for odd-parity 4d25s5p and 4d35p levels for six 91Zr I transitions in the spectral range 458-549 nm using Doppler-free saturated absorption spectroscopy in a sputtered vapour. The measured hyperfine structure constants, A and B, together with results of previous studies were analysed by means of a parametric method. The interpretation was based on refined multiconfigurational fine structure calculations, which include the main Rydberg series configuration states. The analysis suggests a drastic revision of the composition of the 4d5s25p configuration levels. The main one-electron hyperfine structure parameters for the lowest configuration, i.e. 4d25s5p, are determined to be a5s10 = -2672(61) MHz, a4d01 = -115.8(3.4) MHz, a5p01 = -127.4(3.7) MHz, b4d02 = -93.5(2.8) MHz and b5p02 = -139.9(5.1) MHz. These values are in excellent agreement with ab initio calculations, justifying our choice of the perturbing configuration states.

Nuclear hyperfine structure in the X3Σ+ state of 91ZrC

“…However, a more realistic comparison may be with the atomic Fermi contact parameter a 10 5s ¼ À2672 (61) MHz ¼ )0.0891 (20) cm À1 determined experimentally for the 5s electron in the 4d 2 5s5p configuration of the Zr atom [31]. Allowing for the spin multiplicity factor of ð1=2SÞ from Eq.…”

Semiempirical hyperfine structure and ab initio isotope shift predictions in Zr II

“…For comparison, we also insert ab initio calculations using the Pennsylvania State University Hartree Fock relativistic code (PSUHFR) [19] and Cowan code [20]. For this latter all the parameters except spin-orbit f 4d are weighted by a factor 0.7 as usual [21].…”

The standardized uptake value for F‐18 fluorodeoxyglucose is a sensitive predictive biomarker for cervical cancer treatment response and survival

“…For comparison, we insert also ab initio calculations using the Pennsylvania State University Hartree Fock relativistic code (PSUHFR)19 and Cowan code20. For the latter, all the parameters except spin‐orbit ζ 5d and energies of configuration centers of gravity E av are weighted by a factor 0.7 as usual21.…”