Publications (167)
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…
Local Density Approximation for proton-neutron pairing correlations. I. Formalism
E. Perlinska, S. G. Rohozinski, J. Dobaczewski +1
In the present study we generalize the self-consistent Hartree-Fock-Bogoliubov (HFB) theory formulated in the coordinate space to the case which incorporates an arbitrary mixing be…
Angular momentum projection of cranked Hartree-Fock states: Application to terminating bands in A~44 nuclei
H. Zdunczuk, W. Satula, J. Dobaczewski +1
We present the first systematic calculations based on the angular-momentum projection of cranked Slater determinants. We propose the Iy --> I scheme, by which one projects the angu…
The T=0 neutron-proton pairing correlations in the superdeformed rotational bands around 60Zn
J. Dobaczewski, J. Dudek, R. Wyss
The superdeformed bands in 58Cu, 59Cu, 60Zn, and 61Zn are analyzed within the frameworks of the Skyrme-Hartree-Fock as well as Strutinsky-Woods-Saxon total routhian surface methods…
Shape Coexistence and the Effective Nucleon-Nucleon Interaction
P. -G. Reinhard, D. J. Dean, W. Nazarewicz +3
The phenomenon of shape coexistence is discussed within the self-consistent Hartree-Fock method and the nuclear shell model. The occurrence of the coexisting configurations with di…
Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations
M. Zalewski, J. Dobaczewski, W. Satula +1
A new strategy of fitting the coupling constants of the nuclear energy density functional is proposed, which shifts attention from ground-state bulk to single-particle properties.…
Mean-field description of ground-state properties of drip-line nuclei. (I) Shell-correction method
W. Nazarewicz, T. R. Werner, J. Dobaczewski
A shell-correction method is applied to nuclei far from the beta stability line and its suitability to describe effects of the particle continuum is discussed. The sensitivity of p…
Radiative decay and electromagnetic moments in Th determined within nuclear DFT
A. Restrepo-Giraldo, J. Dobaczewski, J. Bonnard +1
Using the nuclear DFT approach with symmetry breaking and restoration, we investigate the electromagnetic properties of the ground and isomeric states in Th. We determine t…
Time-Reversal Violating Schiff Moment of 225Ra
J. Engel, M. Bender, J. Dobaczewski +2
We use the Skyrme-Hartree-Fock method, allowing all symmetries to be broken, to calculate the time-reversal-violating nuclear Schiff moment (which induces atomic electric dipole mo…
Nonlocal energy density functionals for low-energy nuclear structure
F. Raimondi, K. Bennaceur, J. Dobaczewski
We introduce a finite-range pseudopotential built as an expansion in derivatives up to next-to-next-to-next-to-leading order (NLO) and we calculate the corresponding nonlocal e…
Shell Effects in Superdeformed Minima
P. -H. Heenen, J. Dobaczewski, W. Nazarewicz +2
Recent experimental observation of the direct links between superdeformed and normal-deformed structures in the A~190 mass region offers a unique information on the absolute nuclea…
SDG fermion-pair algebraic SO(12) and Sp(10) models and their boson realizations
P. Navratil, H. B. Geyer, J. Dobes +1
It is shown how the boson mapping formalism may be applied as a useful many-body tool to solve a fermion problem. This is done in the context of generalized Ginocchio models for wh…
Spatial symmetries of the local densities
S. G. Rohozinski, J. Dobaczewski, W. Nazarewicz
Spatial symmetries of the densities appearing in the nuclear Density Functional Theory are discussed. General forms of the local densities are derived by using methods of construct…
Approximate restoration of translational and rotational symmetries within the Lipkin method
Y. Gao, J. Dobaczewski, P. Toivanen
Background: Nuclear self-consistent mean-field approaches are rooted in the density functional theory and, through the spontaneous symmetry breaking mechanism, allow for including…
Variation after Particle-Number Projection for the HFB Method with the Skyrme Energy Density Functional
M. V. Stoitsov, J. Dobaczewski, R. Kirchner +2
Variation after particle-number restoration is incorporated for the first time into the Hartree-Fock-Bogoliubov framework employing the Skyrme energy density functional with zero-r…
Structure of Exotic Nuclei
J. Dobaczewski, N. Michel, W. Nazarewicz +2
The progress in the modeling of exotic nuclei with an extreme neutron-to-proton ratio is discussed. Two topics are emphasized: (i) the quest for the universal microscopic nuclear e…
New density-independent interactions for nuclear structure calculations
K. Bennaceur, J. Dobaczewski, F. Raimondi
We present a new two-body finite-range and momentum-dependent but density-independent effective interaction, which can be interpreted as a regularized zero-range force. We show tha…
Title: Quadrupole collective inertia in nuclear fission: cranking approximation
A. Baran, J. A. Sheikh, J. Dobaczewski +1
Collective mass tensor derived from the cranking approximation to the adiabatic time-dependent Hartree-Fock-Bogoliubov (ATDHFB) approach is compared with that obtained in the Gauss…
Shape staggering of mid-shell mercury isotopes from in-source laser spectroscopy compared with Density Functional Theory and Monte Carlo Shell Model calculations
S. Sels, T. Day Goodacre, B. A. Marsh +45
Neutron-deficient Hg isotopes were studied using in-source laser resonance-ionization spectroscopy at the CERN-ISOLDE radioactive ion-beam facility, in an experiment co…
Solution of the Skyrme-Hartree-Fock equations in the Cartesian deformed harmonic oscillator basis. (II) The program HFODD
J. Dobaczewski, J. Dudek
We describe the code HFODD which solves the nuclear Skyrme-Hartree-Fock problem by using the deformed Cartesian harmonic oscillator basis. The user has a possibility of choosing am…
Contact pairing interaction for the Hartree-Fock-Bogoliubov calculations
J. Dobaczewski, W. Nazarewicz, M. V. Stoitsov
Properties of density-dependent contact pairing interactions in nuclei are discussed. It is shown that the pairing interaction that is intermediate between surface and volume pairi…
Nuclear time-reversal violation and the Schiff moment of 225Ra
J. Dobaczewski, J. Engel
We present a comprehensive mean-field calculation of the Schiff moment of the nucleus 225Ra, the quantity which determines the static electric dipole moment of the corresponding at…
Dependence of single-particle energies on coupling constants of the nuclear energy density functional
M. Kortelainen, J. Dobaczewski, K. Mizuyama +1
We show that single-particle energies in doubly magic nuclei depend almost linearly on the coupling constants of the nuclear energy density functional. Therefore, they can be very…
The Shears Mechanism in 142Gd in the Skyrme-Hartree-Fock Method with the Tilted-Axis Cranking
P. Olbratowski, J. Dobaczewski, J. Dudek +3
We report on the first Skyrme-Hartree-Fock calculations with the tilted-axis cranking in the context of magnetic rotation. The mean field symmetries, differences between phenomenol…
Isospin mixing in nuclei within the nuclear density functional theory
W. Satula, J. Dobaczewski, W. Nazarewicz +1
We present the self-consistent, non-perturbative analysis of isospin mixing using the nuclear density functional approach and the rediagonalization of the Coulomb interaction in th…
Laser spectroscopy and CP-violation sensitivity of actinium monofluoride
M. Athanasakis-Kaklamanakis, M. Au, A. Kyuberis +39
The apparent invariance of the strong nuclear force under combined charge conjugation and parity (CP) remains an open question in modern physics. Precision experiments with heavy a…
Current Developments in Nuclear Density Functional Methods
J. Dobaczewski
Density functional theory (DFT) became a universal approach to compute ground-state and excited configurations of many-electron systems held together by an external one-body potent…
Interrogating the composition and distribution of nuclear magnetization via the hyperfine anomaly: experiment meets nuclear and atomic theory for short-lived K
M. L. Bissell, M. Jankowski, A. Antušek +22
To date, the magnetic structure of nuclei has been poorly constrained, with limited information on its spatial distribution. In this work, we address the composition and distributi…
Isospin-symmetry restoration within the nuclear density functional theory: formalism and applications
W. Satula, J. Dobaczewski, W. Nazarewicz +1
Isospin symmetry of atomic nuclei is explicitly broken by the charge-dependent interactions, primarily the Coulomb force. Within the nuclear density functional theory, isospin is a…
Approximate Particle Number Projection for Rotating Nuclei
P. Magierski, S. Äwiok, J. Dobaczewski +1
Pairing correlations in rotating nuclei are discussed within the Lipkin-Nogami method. The accuracy of the method is tested for the Krumlinde-SzymaÅski R(5) model. The results of…
Finite-range separable pairing interaction in Cartesian coordinates
A. M. Romero, J. Dobaczewski, A. Pastore
Within a simple SO(8) algebraic model, the coexistence between isoscalar and isovector pairing modes can be successfully described using a mean-field method plus restoration of bro…
The Delta I=4 Bifurcation in Superdeformed Bands
P. Magierski, K. Burzynski, J. Dobaczewski +1
The origin of the Delta I=4 staggering effect which has recently been observed in several superdeformed bands is discussed. The Hamamoto and Mottelson model, which is based on a ph…
Global nuclear structure aspects of tensor interaction
W. Satula, M. Zalewski, J. Dobaczewski +4
A direct fit of the isoscalar spin-orbit and both isoscalar and isovector tensor coupling constants to the f5/2-f7/2 SO splittings in 40Ca, 56Ni, and 48Ca requires: (i) a significa…
Collective Rotation of Tetrahedral Nuclei in the Cranking Model
N. Schunck, P. Olbratowski, J. Dudek +1
The three-dimensional cranking model is used to investigate the microscopic aspects of the rotation of nuclei with the tetrahedral symmetry. Two classes of rotation axes are studie…
Symmetry restoration in the mean-field description of proton-neutron pairing
A. M. Romero, J. Dobaczewski, A. Pastore
We show that the symmetry-restored paired mean-field states (quasiparticle vacua) properly account for isoscalar versus isovector nuclear pairing properties. Full particle-number,…
Isospin mixing within the multi-reference nuclear density functional theory and beyond - selected aspects
W. Satula, J. Dobaczewski, M. Konieczka +1
The results of systematic calculations of isospin-symmetry-breaking corrections to superallowed beta-decays based on the self-consistent isospin- and angular-momentum-projected nuc…
Microscopic calculations of isospin-breaking corrections to superallowed beta-decay
W. Satula, J. Dobaczewski, W. Nazarewicz +1
The superallowed beta-decay rates that provide stringent constraints on physics beyond the Standard Model of particle physics are affected by nuclear structure effects through isos…
Bimodal fission in the Skyrme-Hartree-Fock approach
A. Staszczak, J. Dobaczewski, W. Nazarewicz
Spontaneous-fission properties of 256Fm, 258Fm, and 260Fm isotopes are studied within the Skyrme-Hartree-Fock+BCS framework. In the particle-hole channel we take the Skyrme SkM* ef…
Critical frequency in nuclear chiral rotation
P. Olbratowski, J. Dobaczewski, J. Dudek
Within the cranked Skyrme-Hartree-Fock approach the self-consistent solutions have been obtained for planar and chiral rotational bands in 132La. It turns out that the chiral band…
Binding energies and pairing gaps in semi-magic nuclei obtained using new regularized higher-order EDF generators
K. Bennaceur, J. Dobaczewski, Y. Gao
We present results of the Hartree-Fock-Bogolyubov calculations performed using nuclear energy density functionals based on regularized functional generators at next-to-leading and…
Time-odd components in the rotating mean field and identical bands
J. Dobaczewski, J. Dudek
A systematic construction of the energy-density functional within the local density approximation is presented. The Hartree-Fock equations corresponding to such a functional are so…
Dependence of direct neutron capture on nuclear-structure models
T. Rauscher, R. Bieber, H. Oberhummer +4
The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We calculate direct neutron capture on the even-even isotopes $^{124-…
Search for Fingerprints of Tetrahedral Symmetry in
Q. T. Doan, D. Curien, O. Stezowski +28
Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2-transitions at the bottom of the odd-spin negative parity ban…
Spontaneous fission lifetimes from the minimization of self-consistent collective action
Jhilam Sadhukhan, K. Mazurek, A. Baran +3
The spontaneous fission lifetime of 264Fm has been studied within nuclear density functional theory by minimizing the collective action integral for fission in a two-dimensional qu…
Precision measurement of the magnetic octupole moment in Sc as a test for state-of-the-art atomic- and nuclear-structure theory
R. P. de Groote, J. Moreno, J. Dobaczewski +4
We report on measurements of the hyperfine and -constants of the and atomic states in Sc. High-precision atomic calculation…
Error analysis of nuclear mass fits
J. Toivanen, J. Dobaczewski, M. Kortelainen +1
We discuss the least-square and linear-regression methods, which are relevant for a reliable determination of good nuclear-mass-model parameter sets and their errors. In this persp…
Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. (VII) HFODD (v2.49t): a new version of the program
N. Schunck, J. Dobaczewski, J. McDonnell +5
We describe the new version (v2.49t) of the code HFODD which solves the nuclear Skyrme Hartree-Fock (HF) or Skyrme Hartree-Fock-Bogolyubov (HFB) problem by using the Cartesian defo…
Reduction in nuclear size and quadrupole deformation of high-spin isomers of 127,129In
A. R. Vernon, C. L. Binnersley, R. F. Garcia Ruiz +29
We employed laser spectroscopy of atomic transitions to measure the nuclear charge radii and electromagnetic properties of the high-spin isomeric states in neutron-rich indium isot…
Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. (VI) HFODD (v2.38j): a new version of the program
J. Dobaczewski, W. Satula, B. G. Carlsson +10
We describe the new version (v2.38j) of the code HFODD which solves the nuclear Skyrme-Hartree-Fock or Skyrme-Hartree-Fock-Bogolyubov problem by using the Cartesian deformed harmon…
Ab Initio Derivation of Model Energy Density Functionals
J. Dobaczewski
I propose a simple and manageable method that allows for deriving coupling constants of model energy density functionals (EDFs) directly from ab initio calculations performed for f…
Particle-Number Projection and the Density Functional Theory
J. Dobaczewski, M. V. Stoitsov, W. Nazarewicz +1
In the framework of the Density Functional Theory for superconductors, we study the restoration of the particle number symmetry by means of the projection technique. Conceptual pro…
Shell Structure of Exotic Nuclei
J. Dobaczewski, N. Michel, W. Nazarewicz +2
Theoretical predictions and experimental discoveries for neutron-rich, short-lived nuclei far from stability indicate that the familiar concept of nucleonic shell structure should…
Antiprotonic studies of nuclear neutron haloes
S. Wycech, J. Skalski, R. Smolanczuk +2
Nuclear capture of antiprotons from atomic states is studied. Partial widths for single nucleon capture events leading to cold residual nuclei are calculated. Recent CERN experimen…
Electromagnetic and Exotic Moments in Nuclear DFT
J. Dobaczewski, B. C. Backes, R. P. de Groote +3
Electromagnetic interactions serve as essential probes for studying and testing our understanding of the atomic nucleus, as they reveal emergent properties across the nuclear chart…
Nonlocal energy density functionals for pairing and beyond-mean-field calculations
K. Bennaceur, A. Idini, J. Dobaczewski +3
We propose to use two-body regularized finite-range pseudopotential to generate nuclear energy density functional (EDF) in both particle-hole and particle-particle channels, which…
Skyrme-HFB deformed nuclear mass table
J. Dobaczewski, M. V. Stoitsov, W. Nazarewicz
The Skyrme-Hartree-Fock-Bogoliubov code HFBTHO using the axial (2D) Transformed Harmonic Oscillator basis is tested against the HFODD (3D Cartesian HO basis) and HFBRAD (radial coo…
Recoil-alpha-fission and recoil-alpha-alpha-fission events observed in the reaction Ca-48 + Am-243
U. Forsberg, D. Rudolph, L. -L. Andersson +51
Products of the fusion-evaporation reaction Ca-48 + Am-243 were studied with the TASISpec set-up at the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforsc…
Properties of spherical and deformed nuclei using regularized pseudopotentials in nuclear DFT
K. Bennaceur, J. Dobaczewski, T. Haverinen +1
We developed new parameterizations of local regularized finite-range pseudopotentials up to next-to-next-to-next-to-leading order (N3LO), used as generators of nuclear density func…
Linear response strength functions with iterative Arnoldi diagonalization
J. Toivanen, B. G. Carlsson, J. Dobaczewski +4
We report on an implementation of a new method to calculate RPA strength functions with iterative non-hermitian Arnoldi diagonalization method, which does not explicitly calculate…
Pairing renormalization and regularization within the local density approximation
P. J. Borycki, J. Dobaczewski, W. Nazarewicz +1
We discuss methods used in mean-field theories to treat pairing correlations within the local density approximation. Pairing renormalization and regularization procedures are compa…
Solution of the Skyrme-Hartree-Fock equations in the Cartesian deformed harmonic oscillator basis. (I) The method
J. Dobaczewski, J. Dudek
We describe a method of solving the nuclear Skyrme-Hartree-Fock problem by using a deformed Cartesian harmonic oscillator basis. The complete list of expressions required to calcul…
Towards a novel energy density functional for beyond-mean-field calculations with pairing and deformation
T. Haverinen, M. Kortelainen, J. Dobaczewski +1
We take an additional step towards the optimization of the novel finite-range pseudopotential at constrained Hartree-Fock-Bogolyubov level and implement an optimization procedure w…
Isobaric Multiplet Mass Equation within nuclear Density Functional Theory
P. Baczyk, W. Satula, J. Dobaczewski +1
We extend the nuclear Density Functional Theory (DFT) by including proton-neutron mixing and contact isospin-symmetry-breaking (ISB) terms up to next-to-leading order (NLO). Within…
Nuclear DFT analysis of electromagnetic moments in odd near doubly magic nuclei
P. L. Sassarini, J. Dobaczewski, J. Bonnard +1
We use the nuclear density functional theory to determine nuclear electric quadrupole and magnetic dipole moments in all one-particle and one-hole neighbours of eight doubly magic…
Particle-drip lines from the Hartree-Fock-Bogoliubov theory with Skyrme interaction
R. SmolaÅczuk, J. Dobaczewski
We calculate positions of one- and two-particle, proton and neutron drip lines within the Hartree-Fock-Bogoliubov theory using Skyrme interaction. We also determine an approximate…
Extraction of ground-state nuclear deformations from ultra-relativistic heavy-ion collisions: Nuclear structure physics context
J. Dobaczewski, A. Gade, K. Godbey +2
The collective-flow-assisted nuclear shape-imaging method in ultra-relativistic heavy-ion collisions has recently been used to characterize nuclear collective states. In this paper…
Point symmetries in the Hartree-Fock approach: Densities, shapes and currents
J. Dobaczewski, J. Dudek, S. G. Rohozinski +1
Three mutually perpendicular symmetry axes of the second order, inversion, and time reversal can be used to construct a double point group denoted by D2h(TD). Properties of this gr…
Interactions, symmetry breaking, and effective fields from quarks to nuclei. (A primer in nuclear theory)
J. Dobaczewski
An introduction to nuclear theory is given starting from the quantum chromodynamics foundations for quark and gluon fields, then discussing properties of pions and nucleons, intera…
Self-Consistent Description of Multipole Strength in Exotic Nuclei I: Method
J. Terasaki, J. Engel, M. Bender +3
We use the canonical Hartree-Fock-Bogoliubov basis to implement a completely self-consistent quasiparticle-random-phase approximation with arbitrary Skyrme energy density functiona…
Isospin mixing of isospin-projected Slater determinants: formalism and preliminary applications
M. Rafalski, W. Satula, J. Dobaczewski
We report on the development of a new theoretical tool that allows for isospin projection of Slater determinants and we present its first applications. In particular, we determine…
Bootstrap technique to study correlation between neutron skin thickness and the slope of symmetry energy in atomic nuclei
D. Muir, A. Pastore, J. Dobaczewski +1
We present a new statistical tool based on random sampling to assess the confidence interval of Pearson's and Spearman's correlation coefficients. These estimators are then used to…
Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects
J. Dobaczewski, W. Nazarewicz, T. R. Werner +3
Ground-state properties of exotic even-even nuclei with extreme neutron-to-proton ratios are described in the framework of the self-consistent mean-field theory with pairing formul…
Solution of the Skyrme-Hartree-Fock equations in the Cartesian deformed harmonic-oscillator basis. (III) HFODD (v1.75r): a new version of the program
J. Dobaczewski, J. Dudek
We describe the new version (v1.75r) of the code HFODD which solves the nuclear Skyrme-Hartree-Fock problem by using the Cartesian deformed harmonic-oscillator basis. Three minor e…
One-quasiparticle States in the Nuclear Energy Density Functional Theory
N. Schunck, J. Dobaczewski, J. McDonnell +4
We study one-quasiproton excitations in the rare-earth region in the framework of the nuclear Density Functional Theory in the Skyrme-Hartree-Fock-Bogoliubov variant. The blocking…
Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. (IV) HFODD (v2.07f): a new version of the program
J. Dobaczewski, P. Olbratowski
We describe the new version (v2.07f) of the code HFODD which solves the nuclear Skyrme-Hartree-Fock or Skyrme-Hartree-Fock-Bogolyubov problem by using the Cartesian deformed harmon…
Coordinate-space solution of the Skyrme-Hartree-Fock-Bogolyubov equations within spherical symmetry. The program HFBRAD (v1.0)
K. Bennaceur, J. Dobaczewski
We describe the first version (v1.00) of the code HFBRAD which solves the Skyrme-Hartree-Fock or Skyrme-Hartree-Fock-Bogolyubov equations in the coordinate representation within th…
Propagation of uncertainties in the Skyrme energy-density-functional model
Y. Gao, J. Dobaczewski, M. Kortelainen +2
Parameters of nuclear energy-density-functionals (EDFs) are always derived by an optimization to experimental data. For the minima of appropriately defined penalty functions, a sta…
The Negele-Vautherin density matrix expansion applied to the Gogny force
J. Dobaczewski, B. G. Carlsson, M. Kortelainen
We use the Negele-Vautherin density matrix expansion to derive a quasi-local density functional for the description of systems of fermions interacting with short-ranged interaction…
Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals
J. Dobaczewski, A. V. Afanasjev, M. Bender +2
We calculate properties of the ground and excited states of nuclei in the nobelium region for proton and neutron numbers of 92 <= Z <= 104 and 144 <= N <= 156, respectively. We use…
Microscopic approach to collective motion
P. Bonche, E. Chabanat, B. Q. Chen +7
An overview of a microscopic framework based on the Hartree-Fock description of the mean field is presented which, starting from an effective interaction allows a description of co…
Pairing anti-halo effect
K. Bennaceur, J. Dobaczewski, M. Ploszajczak
We discuss pairing correlations in weakly bound neutron rich nuclei, by using the coordinate-space Hartree-Fock-Bogolyubov approach which allows to take properly into account the c…
Continuum effects for the mean-field and pairing properties of weakly bound nuclei
K. Bennaceur, J. Dobaczewski, M. Ploszajczak
Continuum effects in the weakly bound nuclei close to the drip-line are investigated using the analytically soluble Poschl-Teller-Ginocchio potential. Pairing correlations are stud…
Rotational properties of nuclei around No investigated using a spectroscopic-quality Skyrme energy density functional
Yue Shi, J. Dobaczewski, P. T. Greenlees
Nuclei in the mass region represent the heaviest systems where detailed spectroscopic information is experimentally available. Although microscopic-macroscopic and se…
Polarization corrections to single-particle energies studied within the energy-density-functional and QRPA approaches
D. Tarpanov, J. Toivanen, J. Dobaczewski +1
Background: Models based on using perturbative polarization corrections and mean-field blocking approximation give conflicting results for masses of odd nuclei. Purpose: Systematic…
Beta decay of r-process waiting-point nuclei in a self-consistent approach
J. Engel, M. Bender, J. Dobaczewski +2
Beta-decay rates for spherical neutron-rich r-process waiting-point nuclei are calculated within a fully self-consistent Quasiparticle Random-Phase Approximation, formulated in the…
Microscopic Study of Superdeformed Rotational Bands in 151Tb
N. El Aouad, J. Dobaczewski, J. Dudek +8
Structure of eight superdeformed bands in the nucleus 151Tb is analyzed using the results of the Hartree-Fock and Woods-Saxon cranking approaches. It is demonstrated that far going…
Tensor interactions in mean-field approaches
J. Dobaczewski
Basic properties of the nuclear tensor mean fields are reviewed, and their role in changing the shell structure and masses of nuclei is analyzed within the spherical Hartree-Fock-B…
Error Estimates of Theoretical Models: a Guide
J. Dobaczewski, W. Nazarewicz, P. -G. Reinhard
This guide offers suggestions/insights on uncertainty quantification of nuclear structure models. We discuss a simple approach to statistical error estimates, strategies to assess…
Generalization of the Bloch-Messiah-Zumino theorem
J. Dobaczewski
It is shown how to construct a basis in which two arbitrary complex antisymmetric matrices C and C' acquire simultaneously canonical forms. The present construction is not restrict…
Shell-structure fingerprints of tensor interaction
M. Zalewski, W. Satula, J. Dobaczewski +4
We address consequences of strong tensor and weak spin-orbit terms in the local energy density functional, resulting from fits to the splittings in Ca, $…
Time-odd components in the mean field of rotating superdeformed nuclei
J. Dobaczewski, J. Dudek
Rotation-induced time-odd components in the nuclear mean field are analyzed using the Hartree-Fock cranking approach with effective interactions SIII, SkM*, and SkP. Identical dyna…
Hexadecapole Interaction and the Delta I=4 Staggering Effect in Rotational Bands
K. Burzynski, P. Magierski, J. Dobaczewski +1
A role of the multipole interaction in the description of the =4 staggering phenomenon is investigated in a model consisting of a single- shell filled by identical…
Solution of self-consistent equations for the N3LO nuclear energy density functional in spherical symmetry. The program HOSPHE (v1.00)
B. G. Carlsson, J. Dobaczewski, J. Toivanen +1
We present solution of self-consistent equations for the N3LO nuclear energy density functional. We derive general expressions for the mean fields expressed as differential operato…
Shape polarization in the tin isotopes near from precision -factor measurements on short-lived isomers
T. J. Gray, A. E. Stuchbery, J. Dobaczewski +16
The factors of isomers in semimagic Sn and Sn (isomeric lifetimes ns and ns, respectively) were measured by an extension of…
Boson-fermion mapping of collective fermion-pair algebras
P. Navratil, H. B. Geyer, J. Dobaczewski
We construct finite Dyson boson-fermion mappings of general collective algebras extended by single-fermion operators. A key element in the construction is the implementation of a s…
Boson-fermion mappings for odd systems from supercoherent states
J. Dobaczewski, F. G. Scholtz, H. B. Geyer
We extend the formalism whereby boson mappings can be derived from generalized coherent states to boson-fermion mappings for systems with an odd number of fermions. This is accompl…
Global Lifetime Measurements of Highly-Deformed and Other Rotational Structures in the A~135 Light Rare-Earth Region: Probing the Single-Particle Motion in a Rotating Potential
M. A. Riley, R. W. Laird, F. G. Kondev +24
It has been possible, using GAMMASPHERE plus Microball,to extract differential lifetime measurements free from common systematic errors for over 15 different nuclei (various isotop…
Precision Mass Measurements beyond Sn: Anomalous behaviour of odd-even staggering of binding energies
J. Hakala, J. Dobaczewski, D. Gorelov +12
Atomic masses of the neutron-rich isotopes Cd, In, Sn, Sb, and Te have been measured with high precision (10 ppb) using…
Effective pseudopotential for energy density functionals with higher order derivatives
F. Raimondi, B. G. Carlsson, J. Dobaczewski
We derive a zero-range pseudopotential that includes all possible terms up to sixth order in derivatives. Within the Hartree-Fock approximation, it gives the average energy that co…
Structure of Superheavy Nuclei Along Element 115 Decay Chains
Yue Shi, D. E. Ward, B. G. Carlsson +4
A recent high-resolution , -ray, and -ray coincidence-spectroscopy experiment offered first glimpse of excitation schemes of isotopes along -decay chains of .…