1. Introduction of a valence space in QRPA: impact on vibrational mass parameters and spectroscopy.
- Author
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Lechaftois, F., Deloncle, I., and Péru, S.
- Subjects
- *
COHERENCE (Physics) , *HAMILTONIAN systems , *STOCHASTIC convergence , *ATOMIC transition probabilities , *TIN isotopes - Abstract
For the first time, using a unique finite range interaction (D1M Gogny force), a fully coherent and time-feasible calculation of the Bohr Hamiltonian vibrational mass is envisioned in a Hartree-Fock-Bogoliubov + Quasiparticle Random Phase Approximation (QRPA) framework. In order to reach handable computation time, we evaluate the feasibility of this method by considering the insertion of a valence space for QRPA. We validate our approach in the even-even tin isotopes comparing the convergence scheme of the mass parameter with those of built-in QRPA outputs: excited state energy and reduced transition probability. The seeming convergence of these intrinsic quantities is shown to be misleading and the difference with the theoretical expected value is quantified. This work is a primary step towards the systematic calculation of mass parameters. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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