Influence of nuclear isospin and angular momentum on α-decay half-lives

Akrawy, Dashty T.; Hassanabadi, H.; Qian, Yibin; Santhosh, K. P.

doi:10.1016/j.nuclphysa.2018.10.091

Cited by 46 publications

(32 citation statements)

References 31 publications

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“…The plots of the calculated α−decay half-lives log T 1/2 (s) against the neutron number using the four R3Y-models with the experimental half-lives are shown in Figure 2. The density-independent model (DD0) is shown in Figure 2a The difference between the experimental and theoretical α-decay halflives has also been calculated using the following formula [17,27]:…”

Section: Resultsmentioning

confidence: 99%

“…Various empirical formulas have been introduced to compute the α-decay half-lives of many isotopes since the introduction of the Geiger-Nuttall law. Some of these formulas are the Royer formula [19][20][21], the Viola-Seaborg formula [22], the universal decay law developed by Qi et al [23,24], the Akrawy formula [25], the Ren formula, [26,27], the scaling law of Horoi [28], scaling law of Brown, the AKRE formula developed by Akrawy and Poenaru [29], etc.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

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 angular momentum are obtained from the selection rule given by [23,39,40]: The alpha-decay half-lives computed for the 19 Hg isotopes 171−189 Hg are shown in Table 1. The first four columns show, respectively, the mass number (A), the calculated Q α values, the calculated temperature and the experimental α-decay half-lives (Expt.)…”

Section: Resultsmentioning

confidence: 99%

“…A generalization of the Viola-Seaborg formula was given by Ren et al [22] for cluster radioactivity half-lives. Modified versions of the Ren formulas, called new Ren A and new Ren B, have also been presented [23]. The new Ren A included nuclear isospin asymmetry while new Ren B included both nuclear isospin asymmetry and angular momentum.…”

Section: Introductionmentioning

confidence: 99%

Alpha decay half-lives of 171-189Hg isotopes using Modified Gamow-like model and temperature dependent proximity potential

Yahya

2020

J. Nig. Soc. Phys. Sci.

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The alpha decay half-lives for $^{171-189}\mathrm{Hg}$ isotopes have been computed using the Gamow-like model (GLM), modified Gamow-like model (MGLM1), temperature-independent Coulomb and proximity potential model (CPPM), and temperature-dependent Coulomb and proximity potential model (CPPMT). New variable parameter sets were numerically calculated for the $^{171-189}\mathrm{Hg}$ using the modified Gamow-like model (termed MGLM2). The results of the computed standard deviation indicates that the modified Gamow-like model (MGLM2) and the temperature-dependent Coulomb and proximity potential model give the least deviation from available experimental values, and therefore suggests that the two models (MGLM2 and CPPMT) are the most suitable for the evaluation of $\alpha$-decay half-lives for the $\mathrm{Hg}$ isotopes.

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“…On the other side, α-decay is an important tool for studying superheavy nuclei which provides crucial information such as energy levels, nuclear structure and few other properties [8][9][10][11][12][13][14][15][16][17]. From experiments it is found that α-decay is the superior decay mode in superheavy nuclei and the observation of α-decay chains in the synthesized superheavy nuclei is an important way to identify them [18].…”

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confidence: 99%

Cluster radioactivity in 294,296Og

et al. 2021

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Cluster radioactivity is one of the exotic phenomena which offers an alternate emission in heavy and superheavy nuclei in addition to the α-decay and spontaneous fission. In the present work, we predict half-lives of cluster decay in superheavy nuclei 294,296 Og by picking up the emission of all possible even-even isotopes from He to Mo (Z=2-42). These half-lives are compared with the half-lives of α-decay, and accordingly the possibility of most probable cluster emission is ascertained. For these decay processes, the disintegration energies (Q-values) are taken from WS4 mass model. To estimate cluster emission half-lives, we use few widely known empirical formulas i.e. Horoi [

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Influence of nuclear isospin and angular momentum on α-decay half-lives

Cited by 46 publications

References 31 publications

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

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

Alpha decay half-lives of 171-189Hg isotopes using Modified Gamow-like model and temperature dependent proximity potential

Cluster radioactivity in 294,296Og

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