12 citations · 27 across the 5 of their papers we have counts for
5 papers
Collective excitations and energy-weighted sum rules in relativistic random phase approximation with vacuum polarization
A. Haga, H. Toki, S. Tamenaga +1
The isoscalar and isovector collective multipole excitations in stable nuclei are studied in the framework of relativistic random-phase approximation with the vacuum polarization a…
Self-consistent relativistic random phase approximation with vacuum polarization
A. Haga, H. Toki, S. Tamenaga +2
We present a theoretical formulation for the description of nuclear excitations within the framework of relativistic random-phase approximation whereby the vacuum polarization aris…
Relativistic Hartree approach with exact treatment of vacuum polarization for finite nuclei
Akihiro Haga, Setsuo Tamenaga, Hiroshi Toki +1
We study the relativistic Hartree approach with the exact treatment of the vacuum polarization in the Walecka sigma-omega model. The contribution from the vacuum polarization of nu…
Gauge Invariant Evaluation of Nuclear Polarization with Collective Model
Yataro Horikawa, Akihiro Haga
The nuclear-polarization (NP) energies with the collective model commonly employed in the NP calculations for hydrogenlike heavy ions are found to have serious gauge violations whe…
Nuclear polarization in hydrogenlike Pb
Akihiro Haga, Yataro Horikawa, Yasutoshi Tanaka
We calculate nuclear-polarization energy shifts for hydrogenlike Pb. A retarded transverse part as well as the Coulomb part is taken into account as the elect…