<b>α</b>
                    decay properties of
                    <sup>297</sup>
                    Og within the two-potential approach

Deng, Jun-Gang; Cheng, Jun-Hao; Zheng, B.; Li, Xiaohua

doi:10.1088/1674-1137/41/12/124109

Cited by 23 publications

(13 citation statements)

References 65 publications

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“…In 1928, the phenomenon of α decay for nuclei was independently explained by Gurney and Condon [1] and Gamow [2] using the quantum tunnel theory. Since then, α decay has long been perceived as one of the most powerful tools to investigate unstable nuclei, neutron-deficient nuclei and superheavy nuclei, and has been an active area of research of nuclear physics [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

et al. 2018

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In the present work, we systematically study the α decay preformation factors Pα within the cluster-formation model and α decay half-lives by the proximity potential 1977 formalism for nuclei around Z = 82, N = 126 closed shells. The calculations show that the realistic Pα is linearly dependent on the product of valance protons (holes) and valance neutrons (holes) NpNn. It is consistent with our previous works [X.-D. Sun et al., Phys. Rev. C 94, 024338 (2016), J.-G. Deng et al., Phys. Rev. C 96, 024318 (2017)], which Pα are model-dependent and extracted from the ratios of calculated α half-lives to experimental data. Combining with our previous works, we confirm that the valance proton-neutron interaction plays a key role in the α preformation for nuclei around Z = 82, N = 126 shell closures whether the Pα is model-dependent or microcosmic. In addition, our calculated α decay half-lives by using the proximity potential 1977 formalism taking Pα evaluated by the cluster-formation model can well reproduce the experimental data and significantly reduce the errors.

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Section: Introductionmentioning

confidence: 99%

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

et al. 2018

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“…[36] π z − π n n h σ 1 σ 2 Og → 300 Lv. In our previous studies of the superheavy nucleus [64,65], the α decay energy is one key input for calculating the α decay half-life. Meanwhile…”

Section: Resultsmentioning

confidence: 99%

Systematic study of α decay half-lives based on Gamow–like model with a screened electrostatic barrier

et al. 2019

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In the present work we systematically study α decay half-lives of Z > 51 nuclei using the modified Gamow-like model which includes the effects of the centrifugal potential and electrostatic shielding. For the case of even-even nuclei, this model contains two adjustable parameters: the parameter a related to the screened electrostatic barrier and the radius constant r 0 , while for the case of odd-odd and odd-A nuclei, it is added a new parameter i.e. hindrance factor h which is used to describe the effect of an odd-proton and/or an odd-neutron.Our calculations can well reproduce the experimental data. In addition, we use this modified Gamow-like model to predict the α-decay half-lives of seven even-even nuclei with Z = 120 and some un-synthesized nuclei on their α decay chains.

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“…Since the pioneering work of Gamow [1], different theoretical methods have been proposed to treat this quasistationary question by solving the time-independent/dependent Schrödinger equation, such as the shell and cluster model [2,3], the S-matrix method [4], the direct method [5], the distorted wave approach [6], and the coupled channel approach [7]. In the quasi-classical limit, the probability of a preformed α particle penetrating through the Coulomb barrier can be approximately calculated by the Wentzel-Kramers-Brillouin (WKB) method [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Empirical formulas based on the WKB method can also be found in Refs.…”

Section: Introductionmentioning

confidence: 99%

Exploring the half-lives of extremely long-lived α emitters *

Fan¹,

Xu²

2022

Chinese Phys. C

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Naturally occurring $\alpha$ emitters with extremely long half-lives are investigated using the latest experimental data. Within the time-dependent perturbation theory, $\alpha$ decay with a rather narrow width is treated as a quasi-stationary problem by dividing the potential between the $\alpha$ particle and daughter nucleus into a stationary part and a perturbation. The experimental $\alpha$ decay half-lives of seven available long-lived $\alpha$ emitters with $T^{\text{total}}_{1/2}>10^{14}$ y are reproduced with a good accuracy. It is also found that the deformation effect should be treated carefully for long-lived nuclei, especially with low $Q_\alpha$ values. Predictions of the $\alpha$ decay half-lives of twenty naturally occurring nuclei are provided, namely, $^{142}$Ce, $^{145,146}$Nd, $^{149}$Sm, $^{156}$Dy, $^{162,164}$Er, $^{168}$Yb, $^{182,183,184,186}$W, $^{187,188,189,190}$Os, $^{192,195}$Pt, and $^{204,206}$Pb. These nuclei are energetically unstable to $\alpha$ decay with low decay energies and extremely long decay half-lives. In particular, the candidates $^{187}$Os and $^{149}$Sm are strongly recommended for future experiments.

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α decay properties of ²⁹⁷ Og within the two-potential approach

Cited by 23 publications

References 65 publications

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

Systematic study of α decay half-lives based on Gamow–like model with a screened electrostatic barrier

Exploring the half-lives of extremely long-lived α emitters *

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α decay properties of 297 Og within the two-potential approach

Cited by 23 publications

References 65 publications

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

Systematic study of α decay of nuclei around the Z=82, N=126 shell closures within the cluster-formation model and proximity potential 1977 formalism

Systematic study of α decay half-lives based on Gamow–like model with a screened electrostatic barrier

Exploring the half-lives of extremely long-lived α emitters *

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α decay properties of ²⁹⁷ Og within the two-potential approach