Title:
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Giant monopole energies from a constrained relativistic mean-field approach
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Author:
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Chen, Wei-Chia; Piekarewicz, J.; Centelles Aixalà, Mario
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Física nuclear -Constitució de la matèria -Excitació nuclear -Teoria quàntica -Nuclear physics -Constitution of matter -Nuclear excitation -Quantum theory |
Rights:
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(c) American Physical Society, 2013
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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