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http://hdl.handle.net/2445/47825
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: http://dx.doi.org/10.1103/PhysRevC.88.024319 |
It is part of: | Physical Review C, 2013, vol. 88, num. 2, p. 024319-1-024319-8 |
URI: | http://hdl.handle.net/2445/47825 |
Related resource: | http://dx.doi.org/10.1103/PhysRevC.88.024319 |
ISSN: | 0556-2813 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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