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相关论文: Systematic study of $\mathcal{\alpha}$ decay half-…

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In the present work, we systematically study the two-proton (2p) radioactivity half-lives of nuclei close to the proton drip line within a modified Gamow-like model. Using this model, the calculated 2p radioactivity half-lives can well…

核理论 · 物理学 2021-12-22 Hong-Ming Liu , You-Tian Zou , Xiao Pan , Biao He , Xiao-Hua Li

Microscopic determination of alpha-decay half-lives requires structure and reaction calculations. The structure part is given by the microscopic distribution of the constituent nucleons, while the relative motion of the product's decay…

核理论 · 物理学 2023-10-23 Alan C. Dassie , Rodolfo M. Id Betan

Evaluated $2\beta^{-}(2\nu)$ half-lives and their systematics were reexamined in the framework of a phenomenological approach. Decay rate dependence on nuclear deformation, decay energy, shape coexistence, and forbidden transitions was…

核理论 · 物理学 2023-03-22 B. Pritychenko

Experimental $\alpha$-decay half-life, spin, and parity of 398 nuclei in the range 50$\leq$Z$\leq$118 are utilized to propose a new formula (QF) with only 4 coefficients as well as to modify the Tagepera-Nurmia formula with just 3…

核理论 · 物理学 2021-09-01 G. Saxena , A. Jain , P. K. Sharma

Finding the best model to describe the {\alpha}-decay process is an old and ongoing challenge in nuclear physics. The present work systematically studied {\alpha}-decay half-lives for the favored ground-state-to-ground-state transitions of…

核理论 · 物理学 2017-07-17 O. N. Ghodsi , A. Daei-Ataollah

In the present work, based on Wentzel-Kramers-Brillouin theory, we systematically study the cluster radioactivity half-lives of 22 nuclei ranging from $^{221}$$\rm{Fr}$ to $^{242}$$\rm{Cm}$ by using a phenomenological model, which considers…

核理论 · 物理学 2023-10-11 Xiao Liu , Jie-Dong Jiang , Lin-Jing Qi , Yang-Yang Xu , Xi-Jun Wu , Xiao-Hua Li

We present the beta decay half-lives calculation for selected even even nuclei that decay through electron emission. The kinematical portion of the half-life calculation was performed using a recently introduced technique for computation of…

核理论 · 物理学 2025-03-14 Jameel-Un Nabi , Mavra Ishfaq , Ovidiu Nitescu , Mihail Mirea , Sabin Stoica

The potential-energy surfaces of an extended set of heavy and super-heavy even-even nuclei with $92 \le Z \le 126$ and isospins $40 \le N-Z \le 74$ are evaluated within the recently developed Fourier shape parametrization. Ground-state and…

核理论 · 物理学 2018-03-28 K. Pomorski , B. Nerlo-Pomorska , J. Bartel , C. Schmitt

A detailed study of $\alpha$-clusters decay is exhibited by incorporating crucial microscopic nuclear structure information into the estimations of half-life and preformation factor. For the first time, using the k-cross validation…

核理论 · 物理学 2024-02-08 G. Saxena , P. K. Sharma , Prafulla Saxena

The predictabilities of the three alpha-decay half-life formulae, the Royer GLDM, the Viola-Seaborg and the Sobiczewski-Parkhomenko formulae, have been evaluated by developing a method based on the ansatz of standard experimental…

核实验 · 物理学 2009-12-17 N. Dasgupta-Schubert , M. A. Reyes , V. A. Tamez

The charge-exchange excitations in nuclei are studied within the fully self-consistent proton-neutron quasiparticle random-phase approximation using the finite-range Gogny interaction. No additional parameters beyond those included in the…

核理论 · 物理学 2015-06-19 M. Martini , S. Péru , S. Goriely

Recently, V.Yu. Denisov proposed a new empirical formula incorporating the deformation of the daughter nucleus, which has significantly improved the description of $\alpha$-decay half-lives for even-even nuclei compared to formulas…

核理论 · 物理学 2026-04-10 Jinyu Hu , Chen Wu

Theoretical estimates of $\alpha$-decay half lives of several nuclei in the decay from element 113 are presented. Calculations in a WKB framework using DDM3Y interaction and experimental Q-values are in good agreement with the experimental…

核理论 · 物理学 2008-11-26 P. Roy Chowdhury , D. N. Basu , C. Samanta

An extensive study of $\alpha$-decay half-lives for various decay chains of isotopes of $Z$ = 120 is performed within the axially deformed relativistic mean-field (RMF) formalism by employing the NL3, NL3$^*$, and DD-ME2 parameter set. The…

核理论 · 物理学 2021-08-30 N. Biswal , Nishu Jain , Raj Kumar , A. S. Pradeep , M. Bhuyan

In this work, we systematically investigate the favored $\alpha$-decay half-lives and $\alpha$ preformation probabilities of both odd-$A$ and doubly-odd nuclei related to ground and isomeric states around the doubly magic cores at $Z=82$,…

核理论 · 物理学 2019-04-22 Xiao-Dong Sun , Ping Guo , Xiao-Hua Li

We examine the effect of nuclear deformation on the calculated $\beta$-decay half-lives of 55 neutron-rich nuclei. The deformation values were computed using DD-PC1 and DD-ME2 interactions in the Relativistic Hartree-Bogoliubov model. Yet…

核理论 · 物理学 2024-07-29 Jameel-Un Nabi , Tuncay Bayram , Wajeeha Khalid , Arslan Mehmood , Alper Köseoğlu

We employ, within the framework of Skyrme energy-density functional theory, the subtracted second random-phase approximation, recently developed for charge-exchange excitations, to compute $\beta$-decay half-lives in four nuclei, $^{24}$O,…

核理论 · 物理学 2025-06-24 Danilo Gambacurta , Marcella Grasso

Four groups (even-even, even-odd, odd-even and odd-odd) of heavy and super-heavy nuclei are of interest for the synthesis of the isotopes with $Z=119, 120$. We report calculations of $\alpha$~decay half-lives using four models: AKRA…

核理论 · 物理学 2017-07-10 D. N. Poenaru , R. A. Gherghescu

A new version of the semiempirical formula based on fission approach of alpha decay is derived, by using the optimum values of the fitting parameters determined for even-even nuclei, combined with hindrance factors for even-odd, odd-even,…

核理论 · 物理学 2008-11-26 D. N. Poenaru , R. A. Gherghescu , N. Carjan

In this paper, we have calculated the $\alpha$-decay half-lives of superheavy nuclei with $106 \leq Z \leq 126$ and a neutron number of $150 \leq N \leq 200$ within proximity potentials and deformed-spherical Coulomb potentials by using…

核理论 · 物理学 2020-08-12 O. N. Ghodsi , M. Hassanzad