Method for detecting the isomeric state I=(3/2)+ in Th229 with laser-induced fluorescence

J. Dembczyński, M. Elantkowska, and J. Ruczkowski
Phys. Rev. A 92, 012519 – Published 27 July 2015

Abstract

There are different predictions regarding the position of the isomeric state of Th229m. There is some question as to whether it even exists. We propose simple experiments to provide the evidence of the existence of this isomeric state. If the metastable isomeric state exists, we should be able to observe the effects of mixing of the nuclear wave functions of the ground state I=5/2 and the isomeric I=3/2 state via electronic shells. It will be shown as the differences between the hyperfine A and B constants, which will be measured by means of the laser-induced fluorescence methods and those predicted by semiempirical calculations. The wave function for the atomic state |conf.SLJIF contains contributions from both nuclear states I=5/2 and 3/2, thus its effects on the hyperfine-structure patterns of spectral lines should be observed, confirming the existence of this isomeric state.

  • Figure
  • Received 28 January 2015

DOI:https://doi.org/10.1103/PhysRevA.92.012519

©2015 American Physical Society

Authors & Affiliations

J. Dembczyński1,*, M. Elantkowska2, and J. Ruczkowski1

  • 1Institute of Control and Information Engineering, Faculty of Electrical Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland
  • 2Laboratory of Quantum Engineering and Metrology, Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland

  • *jerzy.dembczynski@put.poznan.pl

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Vol. 92, Iss. 1 — July 2015

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