Enhanced 
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 decays to negative-parity states in even-even nuclei with octupole deformation

Seif, W. M.; Adel, A.; Antonenko, N. V.; Adamian, G. G.

doi:10.1103/physrevc.107.044601

Cited by 4 publications

(1 citation statement)

References 73 publications

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“…Recent investigations of alpha decay characteristics involve the study of alpha preformation probability [25] which is an important parameter in determining the alpha decay characteristics. According to Seif et al's [26] analysis of alpha decays in even-even deformed nuclei, there is a correlation between the development of static octupole deformation and certain elevated α-branching ratios to negative-parity states. In 2023, Lu et al [27] investigated the alpha decay of 222 U using high-precision alpha decay spectroscopy and resolved the anomaly in the systematics of the α-decay reduced width.…”

Section: Introductionmentioning

confidence: 99%

A Systematic study on the alpha decay of superheavy nuclei using empirical diffuseness parameter in the coulomb and proximity potential model

Prathapan,

Deneshan,

Rajan

et al. 2024

Phys. Scr.

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Recent studies of Dehghani et al. [Mod. Phys. Lett. A 33 14 1850080 (2018)] and Abdul-latif et al. [Phys. Rev. C 100, 024601 (2019)] revealed the importance of the diffuseness parameter in the calculation of alpha decay half-lives from superheavy elements using proximity potentials. In the present paper, predictions of the empirical formula for the diffuseness parameter proposed by Abdul-latif et al. is analyzed in view of the diffuseness parameter calculated by Dehghani et al. using WKB method and considering deformed Woods–Saxon nuclear potential, deformed Coulomb potential, and centrifugal potential; and related theoretical aspects. From the conclusions, we propose three new empirical formulae for the diffuseness parameter. Using the diffuseness parameter calculated from the proposed empirical formula in the Coulomb and Proximity Potential Model (CPPM), the alpha decay half-life of 68 superheavy nuclei is calculated and compared with the experimental values. The inclusion of the diffuseness parameter in proximity potential improved the predictive power of the CPPM considerably.

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Section: Introductionmentioning

confidence: 99%

A Systematic study on the alpha decay of superheavy nuclei using empirical diffuseness parameter in the coulomb and proximity potential model

Prathapan,

Deneshan,

Rajan

et al. 2024

Phys. Scr.

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A simple model for two-proton radioactivity*

Jiang 蒋,

Liu 刘,

Zhang 张

et al. 2024

Chinese Phys. C

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In this work, considering the preformation factor of the emitted two protons in parent nucleus S2p \replaced{and the effect of the parent nucleus deformation}{}, based on the Wentzel-Kramers-Brillouin approximation and Bohr-Sommerfeld quantization condition, we \added{improve} a simple phenomenological model proposed by Bayrak [J. Phys. G: 47, 025102 (2020)] to systematically study the 2p radioactivity half-lives. \added{In this model, it contains two adjustable parameter V0 and aβ, which are related to the depth of nuclear potential obtained and the effect of deformation. } The calculated results show that this model can effectively reproduce the experimental data with a corresponding root-mean-square (RMS) standard deviation sigma = \replaced{0.683 }{0.700}. For comparison, the Gamow-like model (GLM) proposed by Liu et al. [Chin. Phys. C 45, 044110 (2021)], the generalized liquid drop model (GLDM) proposed by Cui et al. [Phys. Rev. C 101, 014301 (2020)], \replaced{effective liquid drop model (ELDM) proposed by M. Gonalves et al. [Phys. Lett. B 774, 14 (2017)], the two-potential approach with Skyrme-Hartree-Fock (TPASHF) proposed by Pan et al. [Chin. Phys. C 45, 124104 (2021)], the phenomenological model with a screened electrostatic barrier (SEB) propoesed by Zou et al. [Chin. Phys. C 45, 104101 (2021)], the unified fission model (UFM) proposed by Xing et al. [Chin. Phys. C 45, 124105 (2021)] ,the Coulomb and proximity potential model for deformed nuclei (CPPMDN) proposed by Santhosh [Phys. Rev. C \textbf{104}, 064613 (2021)],}{} a two-parameter empirical formula proposed by Liu \emph{et\ al}. [Chin. Phys. C \textbf{45}, 024108 (2021)], and a four-parameter empirical formula proposed by Sreeja et al. [Eur. Phys. J. A \textbf{55}, 33 (2019)] are also used. In addition, we use this model to predict the 2p radioactive half-lives of some possible potential nuclei whose 2p radioactivity are energetically allowed or observed but not yet quantified in NUBASE2020.

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Stability and fine structure of α decay of isomers in the trans-tin region of the nuclear chart and their single-particle structure

Seif,

Abdulghany

2024

Phys. Rev. C

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Enhanced α decays to negative-parity states in even-even nuclei with octupole deformation

Cited by 4 publications

References 73 publications

A Systematic study on the alpha decay of superheavy nuclei using empirical diffuseness parameter in the coulomb and proximity potential model

A Systematic study on the alpha decay of superheavy nuclei using empirical diffuseness parameter in the coulomb and proximity potential model

A simple model for two-proton radioactivity*

Stability and fine structure of α decay of isomers in the trans-tin region of the nuclear chart and their single-particle structure

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