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Delaroche, J.-P.; Girod, M.; Bastin, GF Giel; Deloncle, I.; Hannachi, F.; Libert, J.; Porquet, M. G.; Bourgeois, C.; Hojman, D.; Kilcher, P.; Korichi, A.; Blanc, F. Le; Perrin, N.; Roussière, B.; Sauvage, J.; Sergolle, H.

doi:10.1103/physrevc.50.2332

Cited by 46 publications

(55 citation statements)

References 57 publications

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“…The Gogny-D1M and the mapped energy surfaces of the β 2 values consistent with earlier calculations such as the Nilsson-Strutinsky method [36] and the collective model approach based on the Gogny-D1S EDF [40], where β 2 ≈ −0.15 and 0.25-0.3 for the oblate and prolate configurations, respectively. Overall, for each individual nucleus, the topology of the mapped IBM energy surface looks rather similar to the Gogny-D1M one.…”

Section: Energy Surfacessupporting

confidence: 85%

“…6, one sees that only a small fraction of the intruder component plays a role in the low-lying states of 190 Hg. The excited 0 + state is originated almost purely from a single oblate configuration, consistently with the empirical observation [40].…”

supporting

confidence: 85%

“…The mean-field approximation provides the coexisting minima in the deformation energy surface, which are associated to the different intrinsic geometrical shapes [36]. Deformation properties and collective excitations, relevant to the shape coexistence in the neutron-deficient Pb and Hg isotopes, have been investigated using Skyrme [37,38], Gogny [39][40][41][42][43][44], and the RMF interactions [45] as well as within the Nilsson-Strutinsky method [36,46]. Recently, a systematic study of the low-lying states in the lead region has been performed within the number and angular-momentum projected generator coordinate method with axial symmetry, employing the Skyrme EDF [47].…”

Section: Introductionmentioning

confidence: 99%

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Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional

2013

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The interacting boson model with configuration mixing, with parameters derived from the self-consistent mean-field calculation employing the microscopic Gogny energy density functional, is applied to the systematic analysis of the low-lying structure in Hg isotopes. Excitation energies, electromagnetic transition rates, deformation properties, and ground-state properties of the 172−204 Hg nuclei are obtained by mapping the microscopic deformation energy surface onto the equivalent interacting boson model Hamiltonian in the boson condensate. These results point to the overall systematic trend of the transition from the near-spherical vibrational state in lower-mass Hg nuclei close to 172 Hg, the onset of the intruder prolate configuration as well as the manifest prolate-oblate shape coexistence around the midshell nucleus 184 Hg, and a weakly oblate deformed structure beyond 190 Hg up to the spherical vibrational structure toward the near-semimagic nucleus 204 Hg, as observed experimentally. The quality of the present method in the description of the complex shape dynamics in Hg isotopes is examined.

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Section: Energy Surfacessupporting

confidence: 85%

supporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional

2013

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“…This could be an indication that this is the bandhead of the γ vibrational band that is coupled to the prolate band. This assignment is also suggested for the corresponding 2 + state in 184,186 Hg [10,34].…”

Section: B Systematics Of Even Mercury Isotopesmentioning

confidence: 99%

Shape coexistence in180Hg studied through theβdecay of180Tl

Elseviers¹,

Andreyev²,

Antalic³

et al. 2011

Phys. Rev. C

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The β + /EC decay of 180 Tl and excited states in the daughter nucleus 180 Hg have been investigated at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. Many new low-lying energy levels were observed in 180 Hg, of which the most significant are the 0 + 2 at 419.6 keV and the 2 + 2 at 601.3 keV. The former is the bandhead of an excited band in 180 Hg assumed originally to be of prolate nature. From the β feeding to the different states in 180 Hg, the ground-state spin of 180 Tl was deduced to be (4 − ,5 − ).

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“…Calculations based on phenomenological mean fields and Strutinsky method [17], are already able to predict the existence of several competing minima in the deformationenergy surface of neutron-deficient Pt, Hg, and Pb isotopes. Self-consistent mean-field calculations with nonrelativistic Skyrme [18,19] and Gogny [20][21][22][23], as well as relativistic [24] energy density functionals have been carried out. Inclusion of correlations beyond mean field [18][19][20][21][22][23] are needed to obtain a detailed description of the spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Effects of deformation on theβ-decay patterns of light even-even and odd-mass Hg and Pt isotopes

Boillos

Sarriguren

2015

Phys. Rev. C

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Bulk and decay properties, including deformation energy curves, charge mean square radii, Gamow-Teller (GT) strength distributions, and β-decay half-lives, are studied in neutron-deficient even-even and odd-A Hg and Pt isotopes. The nuclear structure is described microscopically from deformed quasiparticle random-phase approximation calculations with residual interactions in both particle-hole and particle-particle channels, performed on top of a self-consistent deformed quasiparticle Skyrme Hartree-Fock basis. The observed sensitivity of the, not yet measured, GT strength distributions to deformation is proposed as an additional complementary signature of the nuclear shape. The β-decay half-lives resulting from these distributions are compared to experiment to demonstrate the ability of the method.

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Evidence for γ vibrations and shape evolutions through the transitionalHg184,186,188,1<

Cited by 46 publications

References 57 publications

Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional

Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional

Shape coexistence in180Hg studied through theβdecay of180Tl

Effects of deformation on theβ-decay patterns of light even-even and odd-mass Hg and Pt isotopes

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