Chen, Wei-ChiaPiekarewicz, J.Centelles Aixalà, Mario2013-11-152013-11-1520130556-2813https://hdl.handle.net/2445/47825Background: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.8 p.application/pdfeng(c) American Physical Society, 2013Física nuclearConstitució de la matèriaExcitació nuclearTeoria quànticaNuclear physicsConstitution of matterNuclear excitationQuantum theoryinfo:eu-repo/semantics/article6292592013-11-15info:eu-repo/semantics/openAccess