Addressing spectroscopic quality of covariant density functional theory

Abstract

The spectroscopic quality of covariant density functional theory has been accessed by analyzing the accuracy and theoretical uncertainties in the description of spectroscopic observables. Such analysis is first presented for the energies of the single-particle states in spherical and deformed nuclei. It is also shown that the inclusion of particle-vibration coupling improves the description of the energies of predominantly single-particle states in medium and heavy-mass spherical nuclei. However, the remaining differences between theory and experiment clearly indicate missing physics and missing terms in covariant energy density functionals. The uncertainties in the predictions of the position of two-neutron drip line sensitively depend on the uncertainties in the prediction of the energies of the single-particle states. On the other hand, many spectroscopic observables in well deformed nuclei at ground state and finite spin only weakly depend on the choice of covariant energy density functional.

21 pages, 9 figures, Invited paper for the Journal of Physics G: Nuclear and Particle Physics focus section entitled "Enhancing the interaction between nuclear experiment and theory through information and statistics", in press

References in corpus (8)

• New parametrization for the nuclear covariant energy density functional with point-coupling interaction
• Error Estimates of Theoretical Models: a Guide
• Global performance of covariant energy density functionals: ground state observables of even-even nuclei and the estimate of theoretical uncertainties
• Microscopically-based energy density functionals for nuclei using the density matrix expansion: Implementation and pre-optimization
• Central depression in nuclear density and its consequences for the shell structure of superheavy nuclei
• Additivity of effective quadrupole moments and angular momentum alignments in the A~130 nuclei
• Microscopic description of rotation: From ground states to the extremes of ultra-high spin
• Note on spin-orbit interactions in nuclei and hypernuclei

Cited by in corpus (9)

• Bayesian approach to model-based extrapolation of nuclear observables
• r-Process Nucleosynthesis: Connecting Rare-Isotope Beam Facilities with the Cosmos
• Neutron drip line in the Ca region from Bayesian model averaging
• Octupole deformation in the ground states of even-even nuclei: a global analysis within the covariant density functional theory
• Multidimensionally-constrained covariant density functional theories --- nuclear shapes and potential energy surfaces
• Tetrahedral shapes of neutron-rich Zr isotopes from multidimensionally-constrained relativistic Hartree-Bogoliubov model
• The propagation of statistical errors in covariant density functional theory: ground state observables and single-particle properties
• Alpha Decay Energies of Superheavy Nuclei: Systematic Trends
• Odd-even staggering in neutron drip line nuclei