Publications (177)
3D Relativistic Hartree-Bogoliubov model with a separable pairing interaction
T. Niksic, D. Vretenar, Y. Tian +2
A recently introduced separable pairing force for relativistic Hartree-Bogoliubov (RHB) calculations, adjusted in nuclear matter to the pairing gap of the Gogny force, is employed…
Spin-Isospin Resonances and Neutron Skin of Nuclei
D. Vretenar, N. Paar, T. Niksic +1
The Gamow-Teller resonances (GTR) and isobaric analog states (IAS) of a sequence of even-even Sn target nuclei are calculated by using the framework of the relativistic Hartree-Bog…
Isoscalar compression modes in relativistic random phase approximation
Zhong-yu Ma, Nguyen Van Giai, A. Wandelt +2
A fully consistent relativistic RPA calculation is performed for the monopole and dipole compression modes in nuclei. The emphasis is put on the effects of Dirac sea states which a…
Three-dimensional angular momentum projected relativistic point-coupling approach for the low-lying excited states in Mg
J. M. Yao, J. Meng, D. Pena Arteaga +1
A full three-dimensional angular momentum projection on top of a triaxial relativistic mean-Geld calculation is implemented for the first time. The underlying Lagrangian is a point…
Relativistic quasiparticle time blocking approximation. Dipole response of open-shell nuclei
E. Litvinova, P. Ring, V. Tselyaev
The self-consistent Relativistic Quasiparticle Random Phase Approximation (RQRPA) is extended by the quasiparticle-phonon coupling (QPC) model using the Quasiparticle Time Blocking…
Quadrupole deformations of neutron-drip-line nuclei studied within the Skyrme Hartree-Fock-Bogolyubov approach
M. V. Stoitsov, J. Dobaczewski, P. Ring +1
We introduce a local-scaling point transformation to allow for modifying the asymptotic properties of the deformed three-dimensional Cartesian harmonic oscillator wave functions. T…
Relativistic Nuclear Energy Density Functionals: adjusting parameters to binding energies
T. Niksic, D. Vretenar, P. Ring
We study a particular class of relativistic nuclear energy density functionals in which only nucleon degrees of freedom are explicitly used in the construction of effective interac…
Shape coexistence near the neutron number N=20: First identification of the E0 decay from the deformed 0^+_2 state in 30Mg
W. Schwerdtfeger, P. G. Thirolf, K. Wimmer +17
The 1789 keV level in 30Mg was identified as the first excited 0^+ state by measuring its E0 transition to the ground state. The measured small value of rho^2(E0,0^+_2 --> 0^+_1) =…
Computer program for the relativistic mean field description of the ground state properties of even-even axially deformed nuclei
P. Ring, Y. K. Gambhir, G. A. Lalazissis
A Fortran program for the calculation of the ground state properties of axially deformed even-even nuclei in the relativistic framework is presented. In this relativistic mean fiel…
Superheavy Nuclei in the Relativistic Mean Field Theory
G. A. Lalazissis, M. M. Sharma, P. Ring +1
We have carried out a study of superheavy nuclei in the framework of the Relativistic Mean-Field theory. Relativistic Hartree-Bogoliubov (RHB) calculations have been performed for…
Proton drip-line nuclei in Relativistic Hartree-Bogoliubov theory
D. Vretenar, G. A. Lalazissis, P. Ring
Ground-state properties of spherical even-even nuclei and are described in the framework of Relativistic Hartree Bogoliubov (RHB) theory. The model…
Emergence of High-Order Deformation in Rotating Transfermium Nuclei: A Microscopic Understanding
F. F. Xu, Y. K. Wang, Y. P. Wang +2
The rotational properties of the transfermium nuclei are investigated in the full deformation space by implementing a shell-model-like approach in the cranking covariant density fu…
Isospin Dependence of the Spin-Orbit Force and Effective Nuclear Potentials,
M. M. Sharma, G. Lalazissis, J. König +1
The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme-like energy functional suitable for density dependent Hartree-Fock calculations. The magn…
Global performance of covariant energy density functionals: ground state observables of even-even nuclei and the estimate of theoretical uncertainties
S. E. Agbemava, A. V. Afanasjev, D. Ray +1
Covariant density functional theory (CDFT) is a modern theoretical tool for the description of nuclear structure phenomena. The current investigation aims at the global assessment…
Configuration interaction in symmetry-conserving covariant density functional theory
P. W. Zhao, P. Ring, J. Meng
A new method to calculate spectroscopic properties of deformed nuclei is proposed: configuration interaction on top of projected density functional theory (CI-PDFT). The general co…
Derivative corrections to the symmetry energy and the isovector dipole-resonance structure in nuclei
J. P. Blocki, A. G. Magner, P. Ring
The effective surface approximation is extended accounting for derivatives of the symmetry energy density per particle. Using the analytical isovector surface energy constants with…
Fragmentation of spin-dipole strength in Zr and Pb
T. Marketin, E. Litvinova, D. Vretenar +1
An extension of time-dependent covariant density functional theory that includes particle-vibration coupling is applied to the charge-exchange channel. Spin-dipole excitation spect…
Octupole deformation in the ground states of even-even nuclei: a global analysis within the covariant density functional theory
S. E. Agbemava, A. V. Afanasjev, P. Ring
A systematic investigation of octupole deformed nuclei is presented for even-even systems with located between the two-proton and two-neutron drip lines. For this study…
Spin symmetry in the anti-nucleon spectrum
Shan-Gui Zhou, Jie Meng, P. Ring
We discuss spin and pseudo-spin symmetry in the spectrum of single nucleons and single anti-nucleons in a nucleus. As an example we use relativistic mean field theory to investigat…
Microscopic and self-consistent description for neutron halo in deformed nuclei
Lulu Li, Jie Meng, P. Ring +2
A deformed relativistic Hartree-Bogoliubov theory in continuum has been developed for the study of neutron halos in deformed nuclei and the halo phenomenon in deformed weakly bound…
Neutron density distributions from antiprotonic 208Pb and 209Bi atoms
B. Klos, A. Trzcinska, J. Jastrzebski +16
The X-ray cascade from antiprotonic atoms was studied for 208Pb and 209Bi. Widths and shifts of the levels due to the strong interaction were determined. Using modern antiproton-nu…
Effect of pairing correlations on nuclear low-energy structure: BCS and general Bogoliubov transformation
J. Xiang, Z. P. Li, J. M. Yao +3
Low-lying nuclear states of Sm isotopes are studied in the framework of a collective Hamiltonian based on covariant energy density functional theory. Pairing correlation are treate…
Properties of superdeformed fission isomers in the cranked relativistic Hartree-Bogoliubov theory
A. V. Afanasjev, P. Ring
The rotational and deformation properties of superdeformed fission isomers in the mass region have been investigated within the framework of the cranked relativistic Ha…
Beyond the relativistic Hartree mean-field approximation: energy dependent effective mass
D. Vretenar, T Niksic, P. Ring
The standard relativistic mean-field model is extended by including dynamical effects that arise in the coupling of single-nucleon motion to collective surface vibrations. A phenom…
Mean field studies of high-spin properties in the and 60 regions of superdeformation
A. V. Afanasjev, P. Ring, I. Ragnarsson
The importance of deformation changes and the possible role of proton-neutron pairing correlations on the properties of paired band crossings at superdeformation in the …
A comparative study of super- and highly-deformed bands in the A ~ 60 mass region
A. V. Afanasjev, I. Ragnarsson, P. Ring
Super- and highly-deformed rotational bands in the A ~ 60 mass region are studied within cranked relativistic mean field theory and the configuration-dependent shell-correction app…
Relativistic Hartree-Bogoliubov description of the deformed ground-state proton emitters
Vretenar, G. A. Lalazissis, P. Ring
Ground-state properties of deformed proton-rich odd-Z nuclei in the region are described in the framework of Relativistic Hartree Bogoliubov (RHB) theory. One-p…
Relativistic Hartree-Bogoliubov description of the neutron drip-line in light nuclei
G. A. Lalazissis, D. Vretenar, W. Pöschl +1
The Relativistic Hartree Bogoliubov theory is applied in the mean-field approximation to the description of properties of light nuclei with large neutron excess. Pairing correlatio…
Relativistic Mean Field Approach and the Pseudo-Spin Symmetry
G. A. Lalazissis, Y. K. Gambhir, J. P. Maharana +2
Based on the Relativistic Mean Field (RMF) approach the existence of the broken pseudo-spin symmetry is investigated. Both spherical RMF and constrained deformed RMF calculations a…
Ground-state properties of deformed proton emitters in the relativistic Hartree-Bogoliubov model
G. A. Lalazissis, D. Vretenar, P. Ring
The Relativistic Hartree Bogoliubov (RHB) model is applied in the description of ground-state properties of proton-rich odd-Z nuclei in the region . The NL3 effe…
Modern applications of covariant density functional theory
P. Ring, H. Abusara, A. V. Afanasjev +3
Modern applications of Covariant Density Functional Theory (CDFT) are discussed. First we show a systematic investigation of fission barriers in actinide nuclei within constraint r…
The fission barriers in Actinides and superheavy nuclei in covariant density functional theory
S. Karatzikos, A. V. Afanasjev, G. A. Lalazissis +1
The impact of pairing correlations on the fission barriers is investigated in Relativistic Hartree Bogoliubov (RHB) theory and Relativistic Mean Field (RMF)+BCS calculations. It is…
Shell Effects in Nuclei Near Neutron Drip
M. M. Sharma, G. A. Lalazissis, W. Hillebrandt +1
Shell effects in nuclei close to the neutron-drip lines have been investigated. It has been demonstrated in the relativistic mean-field theory that nuclei very far from stability m…
The neutron drip line: single-particle degrees of freedom and pairing properties as sources of theoretical uncertainties
A. V. Afanasjev, S. E. Agbemava, D. Ray +1
The sources of theoretical uncertainties in the prediction of the two-neutron drip line are analyzed in the framework of covariant density functional theory. We concentrate on sing…
Beyond-mean-field approaches for nuclear neutrinoless double beta decay in the standard mechanism
J. M. Yao, J. Meng, Y. F. Niu +1
Nuclear weak decays provide important probes to fundamental symmetries in nature. A precise description of these processes in atomic nuclei requires comprehensive knowledge on both…
Neutron halo in deformed nuclei
Shan-Gui Zhou, Jie Meng, P. Ring +1
Halo phenomena in deformed nuclei are investigated within a deformed relativistic Hartree Bogoliubov (DRHB) theory. These weakly bound quantum systems present interesting examples…
A new scissors mode on the skin of deformed neutron rich nuclei
D. Pena Arteaga, P. Ring
Covariant density functional theory is used to analyze the evolution of low-lying M1 strength in superfluid deformed nuclei in the framework of the self-consistent Relativistic Qua…
Beyond the relativistic mean-field approximation: configuration mixing of angular momentum projected wave functions
T. Niksic, D. Vretenar, P. Ring
We report the first study of restoration of rotational symmetry and fluctuations of the quadrupole deformation in the framework of relativistic mean-field models. A model is develo…
Rotating nuclei at extreme conditions: Cranked Relativistic Mean Field Description
A. V. Afanasjev, P. Ring
The cranked relativistic mean field (CRMF) theory is applied for the description of superdeformed (SD) rotational bands observed in Ho. The question of the structure of the…
Excitation energy of superdeformed bands in Relativistic Mean Field Theory
G. A. Lalazissis, P. Ring
Constrained Relativistic Mean Field (RMF) calculations have been carried out to estimate excitation energies relative to the ground state for superdeformed bands in the mass region…
Calculation of beta-decay rates in a relativistic model with momentum-dependent self-energies
T. Marketin, D. Vretenar, P. Ring
The relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is applied in the calculation of beta-decay half-lives of neutron-rich nuclei in the $Z\approx 2…
Superdeformations in Relativistic and Non-Relativistic Mean Field Theories
A. V. Afanasjev, P. Ring
The applications of the extensions of relativistic mean field (RMF) theory to the rotating frame, such as cranked relativistic mean field (CRMF) theory and cranked relativistic Har…
Antimagnetic Rotation Band in Nuclei: A Microscopic Description
P. W. Zhao, J. Peng, H. Z. Liang +2
Covariant density functional theory and the tilted axis cranking method are used to investigate antimagnetic rotation (AMR) in nuclei for the first time in a fully self-consistent…
Monopole giant resonances and nuclear compressibility in relativistic mean field theory
D. Vretenar, G. A. Lalazissis, R. Behnsch +2
Isoscalar and isovector monopole oscillations that correspond to giant resonances in spherical nuclei are described in the framework of time-dependent relativistic mean-field (RMF)…
Nuclear fission in covariant density functional theory
A. V. Afanasjev, H. Abusara, P. Ring
The current status of the application of covariant density functional theory to microscopic description of nuclear fission with main emphasis on superheavy nuclei (SHN) is reviewed…
The Proton Electric Pygmy Dipole Resonance
N. Paar, D. Vretenar, P. Ring
The evolution of the low-lying E1 strength in proton-rich nuclei is analyzed in the framework of the self-consistent relativistic Hartree-Bogoliubov (RHB) model and the relativisti…
Nuclear properties in early stages of stellar collapse
F. K. Sutaria, A. Ray, J. A. Sheikh +1
The spectroscopy of electron capture neutrinos emitted from nearby pre-supernova collapsing stars before the neutrino trapping sets in, can yield useful information on the physical…
Relativistic QRPA description of isoscalar compression modes in open-shell nuclei in the A60 mass region
N. Paar, D. Vretenar, T. Niksic +1
Very recent inelastic -scattering data on the isoscalar monopole and dipole strength distributions in Fe, Ni, and Ni are analyzed in the relativistic quasi…
Systematic study of nuclear matrix elements in neutrinoless double-beta decay with a beyond mean-field covariant density functional theory
J. M. Yao, L. S. Song, K. Hagino +2
We report a systematic study of nuclear matrix elements (NMEs) in neutrinoless double-beta decays with a state-of-the-art beyond mean-field covariant density functional theory. The…
Relativistic Random-Phase Approximation with density-dependent meson-nucleon couplings
T. Niksic, D. Vretenar, P. Ring
The matrix equations of the relativistic random-phase approximation (RRPA) are derived for an effective Lagrangian characterized by density-dependent meson-nucleon vertex functions…
A finite range pairing force for density functional theory in superfluid nuclei
Y. Tian, Z. Y. Ma, P. Ring
The problem of pairing in the S channel of finite nuclei is revisited. In nuclear matter forces of separable form can be adjusted to the bare nuclear force, to any phen…
Fission barriers in covariant density functional theory: extrapolation to superheavy nuclei
H. Abusara, A. V. Afanasjev, P. Ring
Systematic calculations of fission barriers allowing for triaxial deformation are performed for even-even superheavy nuclei with charge number using three classes of co…
Configuration mixing of angular-momentum projected triaxial relativistic mean-field wave functions. II. Microscopic analysis of low-lying states in magnesium isotopes
J. M. Yao, H. Mei, H. Chen +3
The recently developed structure model that uses the generator coordinate method to perform configuration mixing of angular-momentum projected wave functions, generated by constrai…
Relativistic quasiparticle time blocking approximation. II. Pygmy dipole resonance in neutron-rich nuclei
E. Litvinova, P. Ring, V. Tselyaev +1
Theoretical studies of low-lying dipole strength in even-even spherical nuclei within the relativistic quasiparticle time blocking approximation (RQTBA) are presented. The RQTBA de…
An efficient method for computing the Thouless-Valatin inertia parameters
Z. P. Li, T. Niksic, P. Ring +3
Starting from the adiabatic time-dependent Hartree-Fock approximation (ATDHF), we propose an efficient method to calculate the Thouless-Valatin moments of inertia for the nuclear s…
Relativistic description of magnetic moments in nuclei with doubly closed shells plus or minus one nucleon
J. Li, J. X. Wei, J. N. Hu +2
Using the relativistic point-coupling model with density functional PC-PK1, the magnetic moments of the nuclei Pb, Pb, Tl and Bi with a closed-…
Inclusive charged-current neutrino-nucleus reactions calculated with the relativistic quasiparticle random phase approximation
N. Paar, D. Vretenar, T. Marketin +1
Inclusive neutrino-nucleus cross sections are calculated using a consistent relativistic mean-field theoretical framework. The weak lepton-hadron interaction is expressed in the st…
Relativistic mean-field description of the dynamics of giant resonances
D. Vretenar, P. Ring, G. A. Lalazissis +1
The relativistic mean-field theory provides a framework in which the nuclear many-body problem is described as a self-consistent system of nucleons and mesons. In the mean-field ap…
Isovector dipole-resonance structure within the effective surface approximation
J. P. Blocki, A. G. Magner, P. Ring
The nuclear isovector-dipole strength structure is analyzed in terms of the main and satellite (pygmy) peaks within the Fermi-liquid droplet model. Such a structure is sensitive to…
Finite-temperature linear response theory based on relativistic Hartree Bogoliubov model with point-coupling interaction
A. RavliÄ, Y. F. Niu, T. NikÅ¡iÄ +2
The finite-temperature linear response theory based on the finite-temperature relativistic Hartree-Bogoliubov (FT-RHB) model is developed in the charge-exchange channel to study th…
Berry phase and backbending
P. Ring
Backbending is a typical phenomenon in the rotational spectra of superfluid nuclei. It is caused by the rotational alignment of a pair of nucleons and depends on topological proper…
Particle-Number Projected Hartree-Fock-Bogoliubov Study with Effective Shell Model Interactions
I. Maqbool, J. A. Sheikh, P. A. Ganai +1
We perform particle-number projected mean-field study using the recently developed symmetry-projected Hartree-Fock-Bogoliubov (HFB) equations. Realistic calculations have been perf…
Relativistic Hartree-Bogoliubov description of deformed light nuclei
G. A. Lalazissis, D. Vretenar, P. Ring
The Relativistic Hartree-Bogoliubov model is applied in the analysis of ground-state properties of Be, B, C, N, F, Ne and Na isotopes. The model uses the NL3 effective interaction…
Multireference covariant density functional theory for shape coexistence and isomerism in S
E. F. Zhou, X. Y. Wu, J. Xiang +2
We extend the multireference covariant density functional theory (MR-CDFT) to describe the low-lying states of the odd-mass nucleus S near the neutron magic number wi…
Relativistic Continuum Quasiparticle Random Phase Approximation in Spherical Nuclei
I. Daoutidis, P. Ring
We have calculated the strength distributions of the dipole response in spherical nuclei, ranging all over the periodic table. The calculations were performed within two microscopi…
On the Solution of the Number-Projected Hartree-Fock-Bogoliubov Equations
J. A. Sheikh, E. Lopes, P. Ring
The numerical solution of the recently formulated number-projected Hartree-Fock-Bogoliubov equations is studied in an exactly soluble cranked-deformed shell model Hamiltonian. It i…
Isoscalar dipole mode in relativistic random phase approximation
D. Vretenar, A. Wandelt, P. Ring
The isoscalar giant dipole resonance structure in Pb is calculated in the framework of a fully consistent relativistic random phase approximation, based on effective mean-f…
Parity violating elastic electron scattering and neutron density distributions in the Relativistic Hartree-Bogoliubov model
D. Vretenar, P. Finelli, A. Ventura +2
Parity violating elastic electron scattering on neutron-rich nuclei is described in the framework of relativistic mean-field theory. Self-consistent ground state density distributi…
The effective force NL3 revisited
G. A. Lalazissis, S. Karatzikos, R. Fossion +3
Covariant density functional theory based on the relativistic mean field (RMF) Lagrangian with the parameter set NL3 has been used in the last ten years with great success. Now we…
A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
G. A. Lalazissis, J. König, P. Ring
A new parameterization for an effective non-linear Lagrangian density of relativistic mean field (RMF) theory is proposed, which is able to provide an excellent description not onl…
Recent progress in the study of fission barriers in covariant density functional theory
A. V. Afanasjev, H. Abusara, P. Ring
Recent progress in the study of fission barriers of actinides and superheavy nuclei within covariant density functional theory is overviewed.
Cranked relativistic Hartree-Bogoliubov theory: Superdeformation in the mass region
A. V. Afanasjev, P. Ring
A systematic investigation of the yrast superdeformed (SD) rotational bands in even-even nuclei of the mass region has been performed within the framework of the cranke…
Quasiparticle random phase approximation based on the relativistic Hartree-Bogoliubov model
N. Paar, T. Niksic, D. Vretenar +1
The relativistic quasiparticle random phase approximation (RQRPA) is formulated in the canonical single-nucleon basis of the relativistic Hartree-Bogoliubov (RHB) model. For the in…
Ground state properties of the stable nuclei in various mean field theories
K. Pomorski, P. Ring, G. A. Lalazissis +4
The separation energies of neutrons and protons, binding energies, mean square charge radii, electric quadrupole moments and deformation parameters of the proton and neutron distri…
Application of the inverse Hamiltonian method to Hartree-Fock-Bogoliubov calculations
Y. Tanimura, K. Hagino, P. Ring
We solve the Hartree-Fock-Bogoliubov (HFB) equations for a spherical mean field and a pairing potential with the inverse Hamiltonian method, which we have developed for the solutio…
The time-dependent relativistic mean-field theory and the random phase approximation
P. Ring, Zhong-yu Ma, Nguyen Van Giai +3
The Relativistic Random Phase Approximation (RRPA) is derived from the Time-dependent Relativistic Mean Field (TD RMF) theory in the limit of small amplitude oscillations. In the n…
Quasiparticle random phase approximation based on the relativistic Hartree-Bogoliubov model II: Nuclear spin and isospin excitations
N. Paar, T. Niksic, D. Vretenar +1
The proton-neutron relativistic quasiparticle random phase approximation (PN-RQRPA) is formulated in the canonical single-nucleon basis of the relativistic Hartree-Bogoliubov (RHB)…
Microscopic Analysis of Nuclear Quantum Phase Transitions in the N=90 region
Z. P. Li, T. Niksic, D. Vretenar +3
The analysis of shape transitions in Nd isotopes, based on the framework of relativistic energy density functionals and restricted to axially symmetric shapes in Ref. \cite{PRL99},…
Relativistic Hartree-Bogoliubov description of sizes and shapes of A=20 isobars
G. A. Lalazissis, D. Vretenar, P. Ring
Ground-state properties of A = 20 nuclei (N, O, F, Ne, Na, Mg) are described in the framework of Relativistic Hartree-Bogoliubov (RHB) the…
Magnetic rotations in 198Pb and 199Pb within covariant density functional theory
L. F. Yu, P. W. Zhao, S. Q. Zhang +2
Well-known examples of shears bands in the nuclei 198Pb and 199Pb are investigated within tilted axis cranking relativistic mean-field theory. Energy spectra, the relation between…
Renormalized relativistic Hartree-Bogoliubov equations with a zero-range pairing interaction
T. Niksic, P. Ring, D. Vretenar
A recently introduced scheme for the renormalization of the Hartree-Fock-Bogoliubov equations in the case of zero-range pairing interaction is extended to the relativistic Hartree-…
Isospin Dependence of the Spin-Orbit Force and Effective Nuclear Potentials
M. M. Sharma, G. A. Lalazissis, J. Koenig +1
The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme like energy-functional suitable for density-dependent Hartree-Fock calculations. The magn…
Finite- to zero-range relativistic mean-field interactions
T. Niksic, D. Vretenar, G. A. Lalazissis +1
We study the relation between the finite-range (meson-exchange) and zero-range (point-coupling) representations of effective nuclear interactions in the relativistic mean-field fra…
The axially-deformed relativistic quasiparticle random phase approximation based on point-coupling interactions
A. RavliÄ, T. NikÅ¡iÄ, Y. F. Niu +2
Collective nuclear excitations, like giant resonances, are sensitive to nuclear deformation, as evidenced by alterations in their excitation energies and transition strength distri…
Laser spectroscopy of neutron-rich Hg isotopes: Illuminating the kink and odd-even staggering in charge radii across the shell closure
T. Day Goodacre, A. V. Afanasjev, A. E. Barzakh +41
The mean-square charge radii of Hg () have been studied for the first time and those of Hg () remeasured by the applicat…
Neutron density distributions for atomic parity nonconservation experiments
D. Vretenar, G. A. Lalazissis, P. Ring
The neutron distributions of Cs, Ba, Yb and Pb isotopes are described in the framework of relativistic mean-field theory. The self-consistent ground state proton and neutron densit…
Cranked Relativistic Mean Field Description of Superdeformed Rotational Bands
A. V. Afanasjev, G. A. Lalazissis, P. Ring
The cranked relativistic mean field theory is applied for a detailed investigation of eight superdeformed rotational bands observed in Tb. It is shown that this theory is a…
Covariant density functional theory for antimagnetic rotation
P. W. Zhao, J. Peng, H. Z. Liang +2
Following the previous letter on the first microscopic description of the antimagnetic rotation (AMR) in 105Cd, a systematic investigation and detailed analysis for the AMR band in…
Deformed relativistic Hartree Bogoliubov theory in continuum
Lulu Li, Jie Meng, P. Ring +2
A deformed relativistic Hartree Bogoliubov (RHB) theory in continuum is developed aiming at a proper description of exotic nuclei, particularly those with a large spatial extension…
Nonperturbative effects in heavy quarkonia
C. A. A. Nunes, F. S. Navarra, P. Ring +1
An effective hamiltonian for heavy quarkonia is derived from QCD by separating gluonic fields in background and quantum fields and neglecting anharmonic contributions. Mesonic stat…
Charge radii in covariant density functional theory: a global view
U. C. Perera, A. V. Afanasjev, P. Ring
A systematic global investigation of differential charge radii has been performed within the CDFT framework for the first time. Theoretical results obtained with conventional covar…
Ground state properties of rare-earth nuclei in the relativistic Hartree-Bogoliubov model with density-dependent meson-nucleon couplings
T. Niksic, D. Vretenar, G. A. Lalazissis +1
The relativistic mean-field effective interaction with density-dependent meson-nucleon couplings DD-ME1 is tested in the calculation of deformed nuclei. Ground-state properties of…
Anomaly in the charge radii of Pb isotopes
M. M. Sharma, G. A. Lalazissis, P. Ring
The anomalous behaviour of the charge radii of the isotopic chain of Pb nuclei has been studied in the relativistic mean field theory. It has been shown that the relativistic mean…
Low-lying dipole response in the Relativistic Quasiparticle Time Blocking Approximation and its influence on neutron capture cross sections
E. Litvinova, H. P. Loens, K. Langanke +5
We have computed dipole strength distributions for nickel and tin isotopes within the Relativistic Quasiparticle Time Blocking approximation (RQTBA). These calculations provide a g…
Relativistic mean-field description of nuclei at the drip lines
D. Vretenar, P. Ring, G. A. Lalazissis
We present a review of recent applications of the relativistic mean-field theory to the structure of nuclei close to the drip-lines. For systems with extreme isospin values, the re…
A microscopic estimate of the nuclear matter compressibility and symmetry energy in relativistic mean-field models
D. Vretenar, T. Niksic, P. Ring
The relativistic mean-field plus RPA calculations, based on effective Lagrangians with density-dependent meson-nucleon vertex functions, are employed in a microscopic analysis of t…
Relativistic mean field interaction with density dependent meson-nucleon vertices based on microscopical calculations
X. Roca-Maza, X. Viñas, M. Centelles +2
Although ab-initio calculations of relativistic Brueckner theory lead to large scalar isovector fields in nuclear matter, at present, successful versions of covariant density funct…
Random-phase approximation based on relativistic point-coupling models
T. Niksic, D. Vretenar, P. Ring
The matrix equations of the random-phase approximation (RPA) are derived for the point-coupling Lagrangian of the relativistic mean-field (RMF) model. Fully consistent RMF plus (qu…
Charge radii, moments and masses of mercury isotopes across the N = 126 shell closure
T. Day Goodacre, A. V. Afanasjev, A. E. Barzakh +48
Combining laser spectroscopy in a Versatile Arc Discharge and Laser Ion Source, with Penning-trap mass spectrometry at the CERN-ISOLDE facility, this work reports on mean-square ch…
Global performance of covariant density functional theory in description of charge radii and related indicators
A. V. Afanasjev, U. C. Perera, P. Ring
A short review of existing efforts to understand charge radii and related indicators on a global scale within the covariant density functional theory (CDFT) is presented. Using maj…