Abstract
The probabilities for L-shell ionization following the alpha decay of 294117 Ts, 286113 Nh, 278109 Mt, and 270105 Db superheavy nuclei from the decay chain of tennessine, which was synthesized at the Joint Institute for Nuclear Research (JINR Dubna), and the alpha decay of the isotope 21084 Po are calculated and analyzed. The respective calculations rely on a quantum-mechanical model that takes into account alpha-particle tunneling through the Coulomb barrier of an atom. The relativistic electron wave functions obtained by the Dirac-Fock method were employed. The probabilities for L-shell ionization that were calculated here for the isotope 21084 Po are in better agreement with experimental data than the results of earlier calculations. In contrast to what we have for K-shell ionization, where monopole transitions make a dominant contribution to the ionization probability, a significant contribution to the probability for L-shell ionization also comes from dipole and quadrupole transitions. The results of the present study will be of use in interpreting superheavy-element spectra obtained by methods of combined alpha, gamma, and electron-conversion spectroscopy.
Similar content being viewed by others
References
Yu. Ts. Oganessian, F. Sh. Abdullin, C. Alexander, et al., Phys. Rev. C 87, 054621 (2013).
J. Khuyagbaatar, A. Yakushev, Ch. E. Dullmann, et al., Phys. Rev. Lett. 112, 172501 (2014).
V. K. Nikulin and M. B. Trzhaskovskaya, Bull. Russ. Acad. Sci.: Phys. 81, 1207(2017).
A. B. Migdal, Zh. Eksp. Teor. Fiz. 11, 207 (1941).
L. Kocbach, in Proceedings of the Nordic Spring Symposium on Atomic Inner Shell Phenomena, Ed. by J. M. Hansteen and R. Gundersen (Univ. Bergen, Norway, 1978), Vol. 2, p. 65.
M. Lund, J. U. Andersen, E. Lagsgaard, and L. Kocbach, http://owww.phys.au.dk/main/publications/PhD/Martin_Lund.pdf.
R. Anholt and P. A. Amundsen, Phys. Rev. A 25, 169 (1982).
M. B. Trzhaskovskaya and V. K. Nikulin, Phys. Rev. C 93, 034312 (2016).
J. S. Levinger, Phys. Rev. 90, 11 (1953).
H. J. Fischbeck and M. S. Freedman, Phys. Rev. Lett. 34, 173 (1975).
J. Law, Nucl. Phys. A 286, 339 (1977).
S. R. McConnell, A. N. Artemyev, and A. Surzhykov, J. Phys. B 44, 145204 (2011).
I. M. Band, M. B. Trzhaskovskaya, C. W. Nestor, Jr., P. O. Tikkanen, and S. Raman, At. Data Nucl. Data Tables 81, 1 (2002).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Nikulin, V.K., Trzhaskovskaya, M.B. L-Shell Ionization during the Alpha Decay of Superheavy Nuclei from 294117 Ts Tennessine Decay Chain and the Alpha Decay of the Polonium Isotope 21084 Po. Phys. Atom. Nuclei 82, 55–61 (2019). https://doi.org/10.1134/S1063778819010095
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063778819010095