Relativistic perturbation theory calculation of the hyperfine structure parameters for some heavy-element isotopes

2009 ◽  
Vol 109 (14) ◽  
pp. 3330-3335 ◽  
Author(s):  
O. Yu Khetselius
Keyword(s):  
Perturbation Theory ◽  
Hyperfine Structure ◽  
Heavy Element ◽  
Structure Parameters ◽  
Relativistic Perturbation Theory ◽  
Theory Calculation

Relativistic perturbation theory calculation of two-electron doubly excited states

1994 ◽  
Vol 50 (1) ◽  
pp. 29-44 ◽  
Author(s):  
U I Safronova ◽  
M S Safronova ◽  
N J Snyderman ◽  
V G Pal'chikov
Keyword(s):  
Perturbation Theory ◽  
Excited States ◽  
Doubly Excited States ◽  
Doubly Excited ◽  
Relativistic Perturbation Theory ◽  
Theory Calculation

scholarly journals HYPERFINE STRUCTURE PARAMETERS FOR COMPLEX ATOMS WITHIN RELATIVISTIC MANY-BODY PERTURBATION THEORY

2021 ◽  
pp. 52-59
Author(s):  
M. Makushkina ◽  
O. Antoshkina ◽  
O. Khetselius
Keyword(s):  
Perturbation Theory ◽  
Hyperfine Structure ◽  
Finite Size ◽  
Structure Parameters ◽  
Radiative Corrections ◽  
Correlation Effects ◽  
Many Body ◽  
Radium Isotope ◽  
Hartree Fock ◽  
Many Body Perturbation Theory

The calculational results for the hyperfine structure (HFS) parameters for the Mn atom (levels of the configuration 3d64s) and  the results of advanced calculating the HFS constants and nuclear quadrupole moment for the radium isotope are obtained on the basis of computing within the relativistic many-body perturbation theory formalism with a correct and effective taking into account the exchange-correlation, relativistic, nuclear and radiative corrections. Analysis of the data shows that an account of the interelectron correlation effects is crucial in the calculation of the hyperfine structure parameters.  The fundamental reason of physically reasonable agreement between theory and experiment is connected with the correct taking into account the inter-electron correlation effects, nuclear (due to the finite size of a nucleus), relativistic and radiative corrections. The key difference between the results of the relativistic Hartree-Fock Dirac-Fock and many-body perturbation theory methods calculations is explained by using the different schemes of taking into account the inter-electron correlations as well as nuclear and radiative ones.

Perturbation-theory calculation of hyperfine structure in muonic helium

1984 ◽  
Vol 29 (3) ◽  
pp. 1047-1054 ◽  
Author(s):  
Sunil D. Lakdawala ◽  
Peter J. Mohr
Keyword(s):  
Perturbation Theory ◽  
Hyperfine Structure ◽  
Theory Calculation

Investigations in Many-Body Perturbation Theory of Hyperfine Structure in Diatomic Molecules

1973 ◽  
Vol 7 (1) ◽  
pp. 51-59 ◽  
Author(s):  
James E. Rodgers ◽  
Taesul Lee ◽  
T. P. Das ◽  
Dennis Ikenberry
Keyword(s):  
Perturbation Theory ◽  
Hyperfine Structure ◽  
Diatomic Molecules ◽  
Many Body ◽  
Many Body Perturbation Theory
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