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相关论文: On the stability of super-heavy nuclei

200 篇论文

Coexistence of different geometric shapes at low energies presents a universal structure phenomenon that occurs over the entire chart of nuclides. Studies of the shape coexistence are important for understanding the microscopic origin of…

核理论 · 物理学 2017-06-07 S. Quan , Q. Chen , Z. P. Li , T. Niksic , D. Vretenar

Evolution of quadrupole deformations in $sd$ and $pf$ shell nuclei with mass A= 18$\sim$56 is studied by using deformed Skyrme Hartree-Fock (HF) model with pairing correlations. We point out that the quadrupole deformations of the nuclei…

核理论 · 物理学 2009-11-11 H. Sagawa , X. R. Zhou , X. Z. Zhang

With the experimental data at the national nuclear data center, NNDC, we investigate systematically the emerging nuclear structure properties in the first 2+ excited energies, E(2+) and their energy ratios to the first 4+ levels, R =…

核理论 · 物理学 2016-04-12 Chang-Bum Moon

Microscopic investigations for the observed properties of the recently reported five unstable new isotopes are carried out. The ground state properties are calculated in the relativistic mean field (RMF) framework and the results reproduce…

核理论 · 物理学 2018-03-28 H. M. Devaraja , Y. K. Gambhir , A. Bhagwat , M. Gupta , S. Heinz , G. Münzenberg

In years to come, we shall see substantial progress in our understanding of nuclear structure - a rich and many-faceted field. An important element in this task will be to extend the study of nuclei into new domains. The journey to 'the…

核理论 · 物理学 2008-11-26 Jacek Dobaczewski , Witold Nazarewicz

Weak decays in heavy nuclei with charge numbers Z=101-109 are studied within a microscopic formalism based on deformed self-consistent Skyrme Hartree-Fock mean-field calculations with pairing correlations. The half-lives of beta+ decay and…

核理论 · 物理学 2020-11-16 Pedro Sarriguren

The shapes of neutron-rich exotic Ni isotopes are studied. Large-scale shell model calculations are performed by advanced Monte Carlo Shell Model (MCSM) for the $pf$-$g_{9/2}$-$d_{5/2}$ model space. Experimental energy levels are reproduced…

核理论 · 物理学 2015-06-17 Y. Tsunoda , T. Otsuka , N. Shimizu , M. Honma , Y. Utsuno

Photoabsorption cross sections of Nd and Sm isotopes from spherical to deformed even nuclei are systematically investigated by means of the quasiparticle-random-phase approximation based on the Hartree-Fock-Bogoliubov ground states…

核理论 · 物理学 2011-02-23 Kenichi Yoshida , Takashi Nakatsukasa

A systematic study on the alpha decay half lives of various isotopes of superheavy element \textit{Z} = 121 within the range 290 $\leq$ A $\leq$ 339 is presented for the first time using Coulomb and proximity potential model for deformed…

核理论 · 物理学 2016-09-22 K. P. Santhosh , C. Nithya

The ground state properties of Z = 125 and 126 nuclei are investigated, taking the isotopic series from the proton to neutron drip-lines. This analysis is conducted using the relativistic mean-field approach with NL3 and the…

核理论 · 物理学 2024-04-26 Priyanka , A. Chauhan , M. S. Mehta , M. Bhuyan

The alpha-decay half-lives of recently synthesized superheavy nuclei (SHN) are investigated based on a unified fission model (UFM) where a new method to calculate the assault frequency of alpha-emission is used. The excellent agreement with…

核理论 · 物理学 2011-02-28 Jianmin Dong , Wei Zuo , Jianzhong Gu , Yanzhao Wang , Bangbao Peng

The updated data for the ground-state-to-ground-state alpha-transition half-lives in 401 nuclei and the alpha capture cross sections of 40Ca, 44Ca, 59Co, 208Pb and 209Bi are well described in the framework of the unified model for…

核理论 · 物理学 2015-06-29 V. Yu. Denisov , O. I. Davidovskaya , I. Yu. Sedykh

The ground-state deformations of the Ge isotopes are investigated in the framework of Gogny-Hartree-Fock-Bogoliubov (HFB) and Skyrme Hartree-Fock plus pairing in the BCS approximation. Five different Skyrme parametrizations are used to…

核理论 · 物理学 2008-11-26 Lu Guo , J. A. Maruhn , P. -G. Reinhard

In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena can be related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the change of nuclear binding…

How nuclides decay in the superheavy region is key information for investigating new elements beyond oganesson and the island of stability. The Random Forest algorithm is applied to study the competition between different decay modes in the…

核理论 · 物理学 2026-03-23 Boshuai Cai , Cenxi Yuan

The properties of $\gamma$ instability in rapidly rotating even-even $^{132-138}$Nd isotopes have been investigated using the pairing-deformation self-consistent total-Routhian-surface calculations in a deformation space of ($\beta_2,…

核理论 · 物理学 2015-06-19 Qing-Zhen Chai , Hua-Lei Wang , Qiong Yang , Min-Liang Liu

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

We calculate the ground state properties of recently synthesized superheavy nuclei starting from $Z$=105-120. The nonrelativistic and relativistic mean field formalisms is used to evaluate the binding energy, charge radius, quadrupole…

核理论 · 物理学 2013-05-03 S. K. Singh , Mohammad Ikram , S. K. Patra

Light neutron-rich even-even nuclei, of which the ground state is oblately deformed, are looked for, examining the Nilsson diagram based on realistic Woods-Saxon potentials. One-particle energies of the Nilsson diagram are calculated by…

核理论 · 物理学 2015-06-19 Ikuko Hamamoto

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