α-Decay calculations of medium mass nuclei within generalized density-dependent cluster model

Ni, Dongdong; Ren, Zhongzhou

doi:10.1016/j.nuclphysa.2009.07.014

Cited by 43 publications

(19 citation statements)

References 54 publications

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“…µ is the two-body reduced mass. In literature, various α-core effective potentials have been proposed, such as the Cosh potential [19], the Woods-Saxon (WS) potential [21,22], the WS + WS 3 potential [20], the double-folding potential [23], the Woods-Saxon-Gaussian potential [24], etc. In this work, we take the double-folding potential to describe the α-core effective interaction, which is given explicitly by…”

Section: Theoretical Frameworkmentioning

confidence: 99%

$\alpha$α clustering slightly above 100Sn in the light of the new experimental data on the superallowed $\alpha$α decay

Bai

Ren

2018

Eur. Phys. J. A

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The recently observed α-decay chain 108 Xe → 104 Te → 100 Sn [K. Auranen et al., Phys. Rev. Lett. 121, 182501 (2018)] could provide valuable information on the α clustering in even-even nuclei slightly above the major shells Z = 50 and N = 50. In this work, this α-decay chain is studied theoretically within the framework of the density-dependent cluster model plus the twopotential approach. We calculate the α-decay half-lives of 104 Te and 108 Xe and study in detail their dependence on the Q value and the density-profile parameters of the core nucleus. Various physical properties of 104 Te, the heaviest nucleus with a doubly magic self-conjugate core + α, are calculated, with two different assumptions on the renormalization factor of the double-folding potential, which could be a useful reference for future experimental studies.

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Section: Theoretical Frameworkmentioning

confidence: 99%

$\alpha$α clustering slightly above 100Sn in the light of the new experimental data on the superallowed $\alpha$α decay

Bai

Ren

2018

Eur. Phys. J. A

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“…Over the past decades, the α decay process has attracted much interest toward investigating the decay and fusion mechanisms of heavy and superheavy nuclei [1][2][3][4][5][6][7][8][9][10][11][12][13]. Various approaches have been adopted to investigate the properties of the α decay processes [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Pauli exclusion principle on the alpha decay

Amiri,

Ghodsi

2022

Preprint

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In this study, the effects of repulsive nucleon-nucleon interactions arising from the Pauli exclusion principle were examined regarding the half-lives of heavy even-even nuclei with 84 ≤ Z ≤ 92. The Pauli exclusion principle is applied to our investigations by renormalizing the nucleon-nucleon interactions according to the Bohr-Sommerfeld quantization condition. It is also applied to the double-folding (DF ) formalism as a modification term by investigating the kinetic energy variation at the overlapping regions between the densities of the alpha and daughter nuclei. The standard deviation for the calculated half-lives from their corresponded experimental data is 0.340 for the renormalized DF formalism. Its value reduces to 0.309 for the DF formalism modified with the kinetic energy contribution estimated by the extended Thomas-Fermi approach. The calculated α decay half-lives are more consistent with experimental data if the kinetic energy contribution is being associated with the DF formalism.

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“…The effective interaction consists of the nuclear potential, the Coulomb potential and the centrifugal potential. There have been various phenomenological [30,31] and microscopic nuclear potentials [32][33][34][35][36] introduced to study the α−decay of various nuclei. In the microscopic approach, the nuclear potential is determined using the double folding model, where the nuclear densities are folded with the effective M3Y nucleon-nucleon interaction.…”

Section: Introductionmentioning

confidence: 99%

“…In the microscopic approach, the nuclear potential is determined using the double folding model, where the nuclear densities are folded with the effective M3Y nucleon-nucleon interaction. The use of density-dependent double folding model have also been introduced [36][37][38] to study the α−decay half-lives of many nuclei. A microscopic NN interaction derived from relativistic mean field theory Lagrangian (termed R3Y) was introduced in Ref.…”

Section: Introductionmentioning

confidence: 99%

Calculations of the alpha decay half-lives of some Polonium isotopes using the double folding model

Yahya,

Oyewumi

2021

Preprint

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The calculations of the alpha decay half-lives of some Polonium isotopes in the mass range 186 − 218 have been carried out using the Wentzel-Kramers-Brillouin (WKB) semiclassical approximation. The alpha-nucleus effective potential used contains the Coulomb potential, centrifugal potential, and the nuclear potential. The nuclear potential is obtained via the double folding model, with the microscopic NN effective interactions derived from relativistic mean field theory Lagrangian (termed R3Y). Different parametrizations of the R3Y interactions have been employed in the computation of the nuclear potentials. The results obtained using the R3Y NN interactions are compared with the ones obtained using the famous Michigan-3-Yukawa (M3Y) interactions. The use of density-dependent NN interaction is also considered. When compared to available experimental data, there are improvements in the results when density-dependent interaction potentials are used compared to when density-independent interactions are employed.

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α-Decay calculations of medium mass nuclei within generalized density-dependent cluster model

Cited by 43 publications

References 54 publications

$\alpha$α clustering slightly above 100Sn in the light of the new experimental data on the superallowed $\alpha$α decay

$\alpha$α clustering slightly above 100Sn in the light of the new experimental data on the superallowed $\alpha$α decay

Influence of the Pauli exclusion principle on the alpha decay

Calculations of the alpha decay half-lives of some Polonium isotopes using the double folding model

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