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Title: Giant monopole energies from a constrained relativistic mean-field approach
Author: Chen, Wei-Chia
Piekarewicz, J.
Centelles Aixalà, Mario
Keywords: Física nuclear
Constitució de la matèria
Excitació nuclear
Teoria quàntica
Nuclear physics
Constitution of matter
Nuclear excitation
Quantum theory
Issue Date: 2013
Publisher: American Physical Society
Abstract: Background:Average energies of nuclear collective modes may be efficiently and accurately computed using a nonrelativistic constrained approach without reliance on a random phase approximation (RPA). Purpose: To extend the constrained approach to the relativistic domain and to establish its impact on the calibration of energy density functionals. Methods: Relativistic RPA calculations of the giant monopole resonance (GMR) are compared against the predictions of the corresponding constrained approach using two accurately calibrated energy density functionals. Results: We find excellent agreement at the 2% level or better between the predictions of the relativistic RPA and the corresponding constrained approach for magic (or semimagic) nuclei ranging from 16 O to 208 Pb. Conclusions: An efficient and accurate method is proposed for incorporating nuclear collective excitations into the calibration of future energy density functionals.
Note: Reproducció del document publicat a:
It is part of: Physical Review C, 2013, vol. 88, num. 2, p. 024319-1-024319-8
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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