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相关论文: alpha-nucleus potentials, alpha-decay half-lives, …

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Our study employs the nuclear shell model to systematically compute the half-lives of $\beta$ -decay for nuclei in the mass range of $A = 18-39$, encompassing the majority of $sd$ shell nuclei. This analysis utilizes the USDB and SDNN…

核理论 · 物理学 2024-10-10 Surender , Vikas Kumar , Praveen C. Srivastava

We have studied properties and shell structure of the superheavy elements from Z=102 to Z=120 within the framework of the RMF theory. The region of study spans nuclides with neutron numbers N=150-190. The Lagrangian model NL-SV1 with the…

核理论 · 物理学 2009-09-18 A A Saldanha , A R Farhan , M M Sharma

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 cluster decays $^{228}$Th $\rightarrow \, ^{208}$Pb + $^{20}$O, $^{232}$U $\rightarrow \, ^{208}$Pb + $^{24}$Ne, $^{236}$Pu $\rightarrow \, ^{208}$Pb + $^{28}$Mg, $^{242}$Cm $\rightarrow \, ^{208}$Pb + $^{34}$Si are considered in the…

核理论 · 物理学 2013-11-18 V. Yu. Denisov

Using the folding procedure, we investigate the bound state of the $\Omega$+$\alpha$ system based on $\Omega$-$N$ ($^{5}S_{2}$) HAL QCD potential. Previous theoretical analyses have indicated the existence of a deeply bound ground state,…

核理论 · 物理学 2026-05-14 Igor Filikhin , Roman Ya. Kezerashvili , Branislav Vlahovic

The double-beta (2$\beta$)-decay is the rarest nuclear physics process, and its experimental half-lives (T$_{1/2}$) exceed the age of the Universe from nine to fourteen orders of magnitude. Double-beta decay was observed, and its half-life…

核实验 · 物理学 2025-03-26 B. Pritychenko , V. I. Tretyak

One of the prominent decay modes of heavy nuclei which are produced in astrophysical environments at temperatures of the order of $10^9$ K is the $\alpha$ ($^4$He) decay. Thermally enhanced $\alpha$ decay rates are evaluated within the…

核理论 · 物理学 2022-12-09 J. E. Perez Velasquez , O. L. Caballero , N. G. Kelkar

Exotic cluster decay of very heavy nuclei is studied using the microscopic nuclear potentials obtained by folding density dependent M3Y effective interaction with the densities of the cluster and the daughter nuclei. The microscopic nuclear…

核理论 · 物理学 2009-06-24 T. R. Routray , Jagajjaya Nayak , D. N. Basu

The decay dynamical path is determined within the macroscopic-microscopic model for the emission of 24Ne from 232U. The nuclear shape parametrization is characterized five degrees of freedom. The single particle energies and the nucleon…

核理论 · 物理学 2011-07-15 Mihail Mirea , Aureliu Sandulescu , Doru Sabin Delion

Theoretical decay half-lives of the heaviest odd-Z nuclei are calculated using the experimental Q value. The barriers in the quasimolecular shape path are determined within a Generalized Liquid Drop Model (GLDM) and the WKB approximation is…

核实验 · 物理学 2008-11-26 H. F. Zhang , G. Royer

The present work is a continuations of our previous paper [J.-G. Deng, et al., Chin. Phys. C, {\bf41}: 124109 (2017)]. In present work, the $\mathcal{\alpha}$ decay half-life of unknown nucleus $^{296}$Og is predicted within the…

核理论 · 物理学 2019-04-22 Jun-Gang Deng , Jie-Cheng Zhao , Jiu-Long Chen , Xi-Jun Wu , Xiao-Hua Li

We have performed shell-model calculations of the half-lives and neutron-branching probabilities of the r-process waiting point nuclei at the magic neutron number N=82. These new calculations use a larger model space than previous shell…

天体物理学 · 物理学 2008-12-18 J. J. Cuenca-Garcia , G. Martinez-Pinedo , K. Langanke , F. Nowacki , I. N. Borzov

The $\alpha$-decay energies ($Q_\alpha$) are systematically investigated with the nuclear masses for $10 \leq Z \leq 120$ isotopes obtained by the relativistic continuum Hartree-Bogoliubov (RCHB) theory with the covariant density functional…

核理论 · 物理学 2016-08-03 Linfeng Zhang , Xuewei Xia

We present recent shell-model calculations of the gamma-decay in sd-pf and pf-shell nuclei. We focus on the M1 part of the dipole strength which was shown to exhibit interesting low-energy effects, in particular a low-energy enhancement…

核理论 · 物理学 2019-11-20 Kamila Sieja , Stéphane Goriely

The nucleon separation energies and shell gaps in nuclei over the whole nuclear chart are systematically studied with eight global nuclear mass models. For unmeasured neutron-rich and super-heavy regions, the uncertainty of the predictions…

核理论 · 物理学 2015-06-22 Qiuhong Mo , Min Liu , Ning Wang

The ratio of the alpha-decay widths of a bare nucleus and the related atom is calculated. Both the change of the form and thus the penetrability of the potential barrier and the effect of reflection in the classically-allowed region…

核理论 · 物理学 2012-12-04 Sergey Yu. Igashov , Yury M. Tchuvil'sky

The ground state and first intrinsic excited state of superheavy nuclei with Z=120 and N=160-204 are investigated using both non-relativistic Skyrme-Hartree-Fock and the axially deformed Relativistic Mean Field formalisms. We employ a…

核理论 · 物理学 2012-10-04 Shakeb Ahamad , M. Bhuyan , S. K. Patra

This paper investigates the beta decay of nuclei within the sd model space, encompassing the $0d_{3/2}$, $0d_{5/2}$, and $1s_{1/2}$ shells. We comprehensively analyze their decay characteristics, including the half-life, $logft$ value, Q…

核理论 · 物理学 2023-07-25 Surender Siwach

Neutrinoless double beta decay searches are currently among the major foci of experimental physics. The observation of such a decay will have important implications in our understanding of the intrinsic nature of neutrinos and shed light on…

核理论 · 物理学 2020-12-15 L. Coraggio , N. Itaco , G. De Gregorio , A. Gargano , R. Mancino , S. Pastore

The $\alpha$-decay chain of $^{293}$118, first proposed in the Berkeley cold fusion experiment $^{208}$Pb($^{86}$Kr,1n) and now retracted, is calculated by using the preformed cluster model (PCM) of one of us (RKG). Also, the possible…

核理论 · 物理学 2011-11-09 Raj K. Gupta , Sushil Kumar , Rajesh Kumar , M. Balasubramaniam , W. Scheid