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Aufsatz
Interpretation of quasimolecular L X-rays in heavy-ion collisions
(1977)
Using a relativistic selfconsistent correlation diagram a first interpretation of the shape and position of L MO X-rays is given within a quasi-adiabatic model.
Aufsatz
Model calculations on the influence of quantum electrodynamical effects on the chemistry of superheavy elements.
(1972)
Using a phenomenological model, the influence of quantum electrodynamical effects on the prediction of the chemical behavior of superheavy elements within a relativistic Dirac-Slater calculation was investigated. This influence will be small and nondetectable for elements up to Z = 114. For elements near Z = 164 some changes in the ground state configurations occur but the chemical behavior will not change. Using this heuristic model, it is also possible to calculate elements beyond Z = 175. As an example we have ...
Aufsatz
Effect of nuclear motion on the energy eigenvalues in muonic atoms
(1973)
I have investigated the effect of the nuclear motion on the energy eigenvalues in muonic
atoms. In addition to the usually used reduced-mass correction, I have calculated the relativistic influences including the magnetic and retardation interaction between the nucleus and the muon for the inner orbitals of muonic atoms.
Aufsatz
Electronic configuration in the ground state of atomic lawrencium
(1974)
Self-consistent relativistic Dirac-Hartree-Fock calculations have been made of some lowlying electronic energies for the atoms of all elements in ground-state ds^2 electron configurations.
The results indicate that, contrary to some previous estimates, the ground electronic
state of atomic Lr could be in either the 5f^14 6d7s^2 or the 5f^14 7p 7s^2 electron configuration.
The separation between the lowest energy level of the 5f^14 6d7s^2 configuration and the lowest energy level of the 5f^14 7p7s^2 configuration ...
Aufsatz
Self-energy corrections in heavy muonic atoms
(1978)
Self-energy corrections for ls_1/2 levels of heavy muonic atoms are calculated to all orders in the external field using numerical techniques to evaluate the bound-muon propagator. The resulting values of the selfenergy are about 10% larger than previous estimates.
Aufsatz
Calculation of isomer shift in Mössbauer spectroscopy
(1972)
The approximations normally used in the calculation of the isomer shift are compared with the exact expressions using Dirac-Slater orbitals and a three-parameter Fermi-type nuclear charge distribution. The nonuniformity of the electronic density over the nuclear volume affects the results. Different choices of the nuclear surface thickness t and the radius c in the protonic
density P_N (\gamma) also affects the isomer shift differently even though the values are chosen to yield a given value of \delta <r^2>. The ...
Aufsatz
The Li-like KLL-Auger spectrum of foil excitation Ne-projectiles
(1977)
KLL-Auger transitions of the three electron system in Ne have been recorded in a coincidence experiment frec of
contaminants from other systems. Energies as well as intensities are compared with calculated values.