Evolution of deformation in neutron-rich Ba isotopes up to 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>A</mml:mi><mml:mo>=</mml:mo><mml:mn>150</mml:mn></mml:mrow></mml:math>

Lică, R.; Rodríguez, T. R.; Borge, M. J. G.; Fraile, L. M.; Mach, H.; Morales, A. I.; Madurga, M.; Sotty, Ch.; Vedia, V.; Witte, H. De; Benito, J.; Bernard, R.; Berry, Tom; Bracco, A.; Camera, F.; Ceruti, S.; Charviakova, Volha; Cieplicka-Oryńczak, N.; Costache, C.; Crespi, F. C. L.; Creswell, J. R.; Fernández-Martínez, G.; Fynbo, H. O. U.; Greenlees, P. T.; Homm, I.; Huyse, M.; Jolie, J.; Karayonchev, V.; Köster, U.; Konki, J.; Kroll, Thilo; Kurcewicz, J.; Kurtukian‐Nieto, T.; Lazarus, I.; Lund, M. V.; Mărginean, N.; Mărginean, R.; Mihai, C.; Mihai, R.; Negreţ, A.; Orduz, Angie; Patyk, Z.; Pascu, S.; Pucknell, V.; Rahkila, P.; Rapisarda, E.; Régis, J.-M.; Robledo, L. M.; Rotaru, F.; Saed-Samii, N.; Sánchez-Tembleque, V.; Stănoiu, M.; Tengblad, O.; Thuerauf, M.; Turturică, A.; Duppen, P. Van; Warr, N.

doi:10.1103/physrevc.97.024305

Cited by 21 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We can mention calculations based on macroscopic-microscopic models [9][10][11], self-consistent * knomura@phy.hr mean-field (SCMF) approaches with and without symmetry restoration , interacting boson models (IBM) [42][43][44][45][46][47][48][49][50][51][52][53][54][55], shell model [56,57], geometrical collective models [58][59][60], and cluster models [61,62]. Among the SCMF approaches it is worth noticing the recent calculations within the framework of the full symmetry-restored (angular momentum, particle number and parity) generator coordinate method (GCM) [63] based on the Gogny [6,31,64] and covariant [65] EDFs performed to analyze octupole correlations in the low-lying states of nuclei around 144 Ba. However, for heavy nuclear systems, full symmetry-projected GCM calculations are quite time consuming.…”

Section: Introductionmentioning

confidence: 99%

Evolution of octupole deformation and collectivity in neutron-rich lanthanides

et al. 2021

Self Cite

View full text Add to dashboard Cite

The onset of octupole deformation and its impact on related spectroscopic properties is studied in even-even neutron-rich lanthanide isotopes Xe, Ba, Ce, and Nd with neutron number 86 N 94. Microscopic input comes from the Hartree-Fock-Bogoliubov approximation with constrains on the axially symmetric quadrupole and octupole operators using the Gogny-D1M interaction. At the mean-field level, reflection asymmetric ground states are predicted for isotopes with neutron number around N = 88. Spectroscopic properties are studied by diagonalizing the interacting boson model Hamiltonian, with the parameters obtained via the mapping of the mean-field potential energy surface onto the expectation value of the Hamiltonian in the s, d, and f boson condensate state. The results obtained for low-energy positive-and negative-parity excitation spectra as well as the electric dipole, quadrupole, and octupole transition probabilities indicate the onset of pronounced octupolarity for Z ≈ 56 and N ≈ 88 nuclei.

show abstract

Section: Introductionmentioning

confidence: 99%

Evolution of octupole deformation and collectivity in neutron-rich lanthanides

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…One is expected to be stretched because the ground-state energy is favored over the energies of the excited states. Despite these limitations, this SCCM method allowed the qualitative description of positive and negative parity low-lying states in Ba isotopes [44][45][46].…”

Section: B Cranking Calculationsmentioning

confidence: 99%

“…Since such shapes are symmetric under the space inversion, 45 all members of the rotational band have the same parity. 46 Instead, nuclei that represent reflection-asymmetric shapes, 47 as for example the pear shape, develop low-lying negative-48 parity states. Based on extensive investigations of this kind of 49 deformations it was concluded that they are not as stable as 50 the familiar quadrupole deformations.…”

Section: Introductionmentioning

confidence: 99%

Octupole correlations near Te110

Testov¹,

Bakes²,

Valiente-Dobón³

et al. 2021

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

The lifetime of 2 + and 9 − , 11 − , 13 − , 15 − states in the neutron-deficient 110 Te was measured for the first time using the recoil distance Doppler shift technique. The reported value of the reduced transition probability B(E 2; 0 + g.s → 2 + ) = 4.3(8) × 10 3 e 2 f m 4 supports the systematic for even-mass Te isotopes and was interpreted in the framework of the large-scale shell model and the cranked shell model calculations. The measured reduced transition probabilities in the negative-parity yrast band revealed the upward trend towards the high spins. The enhanced collectivity is discussed in terms of the tilted axis cranking approach and the symmetry configuration mixing method with the Gogny D1S interaction.

show abstract

“…On the other hand, SCCM calculations including particle number, parity and angular momentum projection and both axial quadrupole and octupole shape mixing have been also applied to study the interplay between quadrupole and octupole degrees of freedom, in particular, in neutron rich barium isotopes [231,100,336]. The mean-field PES and the ground state collective wave functions in the (β 2 , β 3 ) plane are represented for 142−150 Ba nuclei in Fig.…”

Section: -12mentioning

confidence: 99%

Mean field and beyond description of nuclear structure with the Gogny force: A review

Robledo,

Rodríguez,

Rodríguez-Guzmán

2018

Preprint

Self Cite

View full text Add to dashboard Cite

Nowadays, the Gogny force is a referent in the theoretical description of nuclear structure phenomena. Its phenomenological character manifests in a simple analytical form that allows for implementations of techniques both at the mean field and beyond all over the nuclide chart. Over the years, multiple applications of the standard many-body techniques in an assorted set of nuclear structure applications have produced results which are in a rather good agreement with experimental data. The agreement allows for a simple interpretation of those intriguing phenomena in simple terms and gives confidence on the predictability of the interaction. The present status on the implementation of different many body techniques with the Gogny force is reviewed with a special emphasis on symmetry restoration and large amplitude collective motion.

show abstract

Evolution of deformation in neutron-rich Ba isotopes up to A=150

Cited by 21 publications

References 34 publications

Evolution of octupole deformation and collectivity in neutron-rich lanthanides

Evolution of octupole deformation and collectivity in neutron-rich lanthanides

Octupole correlations near Te110

Mean field and beyond description of nuclear structure with the Gogny force: A review

Contact Info

Product

Resources

About