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Manzo-Robledo, Francisco

doi:10.1023/a:1014447814188

Cited by 4 publications

(5 citation statements)

References 8 publications

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“…In Table 9 we see that the spectroscopic quadrupole moment gives an oblate shape for 36 Ar only when K = 0. The experimental Q 0 value −0.39 eb is then very close to the theoretical ones (both at −0.43 eb).…”

Section: Argon Chainmentioning

confidence: 90%

“…It is assumed that the simplex, axial and time reversal symmetries are preserved for all the calculations. The HFBAXIAL code [36] uses a harmonic oscillator basis of the Fock space whose dimension is chosen with respect to the nucleus under consideration. In that context the HFB states are labeled by a set of quantum numbers namely the radial n ⊥ the axial quantum number n z (symmetry over the z-axis) the projection of the spacial and intrinsic angular momentum m, s z on the symmetry axis.…”

Section: Computational Aspectsmentioning

confidence: 99%

“…Here the tensor energy can be either attractive or repulsive. Like 40 Ca and 80 Zr, 36 Ar is a N = Z nucleus and the ratio between the different contributions also reflects the parameters but two orders of magnitude bigger than the doubly SS nuclei. This is due to the fact that the 1d 3/2 subshell is half full.…”

Section: Tensor Energy Decompositionmentioning

confidence: 99%

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Interplay between tensor force and deformation in even–even nuclei

Bernard

Anguiano

2016

Nuclear Physics A

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In this work we study the effect of the nuclear tensor force on properties related with deformation. We focus on isotopes in the Mg, Si, S, Ar, Sr and Zr chains within the Hartree-Fock-Bogoliubov theory using the D1ST2a Gogny interaction. Contributions to the tensor energy in terms of saturated and unsaturated subshells are analyzed. Like-particle and proton-neutron parts of the tensor term are independently examinated. We found that the tensor term may considerably modify the potential energy landscapes and change the ground state shape. We analyze too how the pairing characteristics of the ground state change when the tensor force is included.

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Section: Argon Chainmentioning

confidence: 90%

Section: Computational Aspectsmentioning

confidence: 99%

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Interplay between tensor force and deformation in even–even nuclei

Bernard

Anguiano

2016

Nuclear Physics A

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“…[3,22] based on the axial Gogny-HFB solver [23] and D1S parameter set [24]. We used the stretched HO basis with N z = 22 HO shells along the symmetry axis and N ⊥ = 15 shells in the perpendicular direction.…”

Section: Modelmentioning

confidence: 99%

Fission modes of mercury isotopes

2012

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Background: Recent experiments on beta-delayed fission in the mercury-lead region and the discovery of asymmetric fission in 180 Hg [1] have stimulated theoretical interest in the mechanism of fission in heavy nuclei.Purpose: We study fission modes and fusion valleys in 180 Hg and 198 Hg to reveal the role of shell effects in pre-scission region and explain the experimentally observed fragment mass asymmetry and its variation with A. Methods:We use the self-consistent nuclear density functional theory employing Skyrme and Gogny energy density functionals.Results: The potential energy surfaces in multi-dimensional space of collective coordinates, including elongation, triaxiality, reflection-asymmetry, and necking, are calculated for 180 Hg and 198 Hg. The asymmetric fission valleys -well separated from fusion valleys associated with nearly spherical fragments -are found in in both cases. The density distributions at scission configurations are studied and related to the experimentally observed mass splits. Conclusions

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“…The PES connection at the fission isomer assumed Q 22 = Q 30 = 0, with Q 20 and λ 2 continued smoothly, as in [22]. In the case of Gogny D1S calculations, a two-dimensional collective space described by coordinates (Q 20 , Q 30 ) was used within the DFT solver HFBaxial [49], where the stretched harmonic oscillator basis corresponding to 17 harmonic oscillator shells was optimized for each (Q 20 , Q 30 ) value. Each PES was interpolated from a discrete, uniform grid, the spacing of which is shown in the upper half of Table I.…”

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confidence: 99%

Cluster radioactivity of Og176118294

et al. 2019

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According to theory, cluster radioactivity becomes an important decay mode in superheavy nuclei. In this work, we predict that the strongly-asymmetric fission, or cluster emission, is in fact the dominant fission channel for 294 118 Og176, which is currently the heaviest synthetic isotope known. Our theoretical approach incorporates important features of fission dynamics, including quantum tunneling and stochastic dynamics up to scission. We show that, despite appreciable differences in static fission properties such as fission barriers and spontaneous fission lifetimes, the prediction of cluster radioactivity in 294 118 Og176 is robust with respect to the details of calculations, including the choice of energy density functional, collective inertia, and the strength of the dissipation term.

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Cited by 4 publications

References 8 publications

Interplay between tensor force and deformation in even–even nuclei

Interplay between tensor force and deformation in even–even nuclei

Fission modes of mercury isotopes

Cluster radioactivity of Og176118294

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