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5 papers · 2 filters
Skyrme-Rpa Description of Spin-Flip M1 Giant Resonance
P. Vesely, J. Kvasil, V. O. Nesterenko +3
The spin-flip M1 giant resonance is explored in the framework of Random Phase Approximation on the basis of the Skyrme energy functional. A representative set of eight Skyrme param…
Center-of-mass problem in truncated configuration interaction and coupled-cluster calculations
Robert Roth, Jeffrey R. Gour, Piotr Piecuch
The problem of center-of-mass (CM) contaminations in ab initio nuclear structure calculations using configuration interaction (CI) and coupled-cluster (CC) approaches is analyzed.…
Low-lying dipole response in the Relativistic Quasiparticle Time Blocking Approximation and its influence on neutron capture cross sections
E. Litvinova, H. P. Loens, K. Langanke +5
We have computed dipole strength distributions for nickel and tin isotopes within the Relativistic Quasiparticle Time Blocking approximation (RQTBA). These calculations provide a g…
Importance Truncation for Large-Scale Configuration Interaction Approaches
Robert Roth
We introduce an iterative importance truncation scheme which aims at reducing the dimension of the model space of configuration interaction approaches by an a priori selection of t…
Pairing in the Framework of the Unitary Correlation Operator Method (UCOM): Hartree-Fock-Bogoliubov Calculations
H. Hergert, R. Roth
In this first in a series of articles, we apply effective interactions derived by the Unitary Correlation Operator Method (UCOM) to the description of open-shell nuclei, using a se…