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相关论文: Study of N = 16 shell closure within RMF+BCS appro…

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A unified theoretical model reproducing charge radii of known atomic nuclei plays an essential role in making extrapolations for unknown nuclei. Recently developed new ansatz which phenomenologically takes into account the neutron-proton…

核理论 · 物理学 2022-02-17 Rong An , Xiang Jiang , Li-Gang Cao , Feng-Shou Zhang

Large scale shell model calculations have been carried out for odd-odd $^{58-62}$Mn isotopes in two different model spaces. First set of calculations have been carried out in full $\it{fp}$ shell valence space with two recently derived…

核理论 · 物理学 2014-11-20 P. C. Srivastava , I. Mehrotra

Based on the realistic nuclear force of the high-precision CD-Bonn potential, we have performed comprehensive calculations for neutron-rich calcium isotopes using the Gamow shell model (GSM) which includes resonance and continuum. The…

核理论 · 物理学 2021-01-12 J. G. Li , B. S. Hu , Q. Wu , Y. Gao , S. J. Dai , F. R. Xu

The empirical pairing gaps derived from four different odd-even mass staggering formulas are compared. By performing single-$j$ shell and multi-shell seniority model calculations as well as by using the standard HFB approach with Skyrme…

核理论 · 物理学 2015-08-11 S. A. Changizi , Chong Qi , R. Wyss

We evaluate the allowed $\beta^-$-decay properties of nuclei with $Z = 8 - 15$ systematically under the framework of the nuclear shell model with the use of the valence space Hamiltonians derived from modern $ab~intio$ methods, such as…

核理论 · 物理学 2020-03-23 Anil Kumar , Praveen C. Srivastava , Toshio Suzuki

The low-energy structure and $\beta$ decay properties of the neutron-rich even-mass nuclei near the neutron number $N=60$ that are experimentally of much interest are investigated within the framework of the nuclear density functional…

核理论 · 物理学 2024-04-02 Kosuke Nomura

We build and train the artificial neural network model (ANN) based on the experimental $\alpha$-decay energy ($Q_{\alpha}$) data. Besides decays between the ground states of parent and daughter nuclei, decays from the ground state of parent…

核理论 · 物理学 2022-04-12 Hong-Qiang You , Zheng-Zhe Qu , Ren-Hang Wu , Hao-Ze Su , Xiao-Tao He

The experimental binding energies of single-particle and single-hole neutron states belonging to neutron shells that extend from N = 126 to 184 and 82 to 126 respectively, have been reproduced by solving the Schr\"{o}dinger equation with a…

核理论 · 物理学 2016-08-24 J. A. Liendo , E. Castro , R. Gómez , D. D. Caussyn

The shell evolution has been studied extensively within the framework of interacting shell model, while the studies from the single particle viewpoint is relatively lacking or neglected. In particular, the isospin dependence of spin-orbit…

核理论 · 物理学 2020-11-30 Weiqiang Ma , Yibin Qian

We investigate the low-lying 2$^+$ states of $N=28$ isotones ($^{48}$Ca, $^{46}$Ar, $^{44}$S and $^{42}$Si) with using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory in which the pairing is taken into account…

核理论 · 物理学 2015-01-22 Shuichiro Ebata , Masaaki Kimura

We combine a recently developed ab initio many-body approach capable of describing simultaneously both bound and scattering states, the ab initio NCSM/RGM, with an importance truncation scheme for the cluster eigenstate basis and demostrate…

核理论 · 物理学 2014-11-21 Petr Navratil , Robert Roth , Sofia Quaglioni

This paper refers to an another attempt to search for spherical double shell closure nu- clei beyond Z=82, N=126. All calculations and results are based on a newly developed approach entitled as simple effective interaction. Our results…

核理论 · 物理学 2014-03-18 S. K. Biswal , M. Bhuyan , S. K. Singh , S. K. Patra

Conventional signatures of nuclear magic number, including low-lying quadrupole collectivity and mass systematics, face significant challenges when probing emergent shell closures near the drip line. However, $\beta$-decay half-lives are…

核理论 · 物理学 2026-03-10 L. Guo , Z. H. Wang , X. L. Zhi , Y. F. Niu , W. H. Long , Z. M. Niu , Q. B. Zeng , Z. Liu

The magic nature of the $^{54}$Ca nucleus is investigated in the light of the recent experimental results. We employ both HFB and HF+BCS methods using Skyrme-type SLy5, SLy5+T and T44 interactions. The evolution of the single-particle…

核理论 · 物理学 2014-07-01 E. Yüksel , N. Van Giai , E. Khan , K. Bozkurt

Two back-to-back experiments, 28Si + 178Hf and 28Si + 186W, were intentionally conducted to validate the role of shell closure in pre-actinides by studying neutron multiplicity in compound nucleus (CN) 206Rn and 214Ra. In the first…

Pronounced changes of nuclear charge radii provide a stringent benchmark on the theoretical models and play a vital role in recognizing various nuclear phenomena. In this work, the systematic evolutions of nuclear charge radii along even…

核理论 · 物理学 2023-03-28 Rong An , Xiao-Xu Dong , Li-Gang Cao , Feng-Shou Zhang

In this work, we present a systematic study of low-lying states and electromagnetic properties of the semi-magic $N = 82$ isotonic chain with proton number $Z=51$-77, using the full configuration interaction shell model with a newly…

核理论 · 物理学 2026-01-15 Y. X. Yu , Q. Y. Chen , Chong Qi , G. J. Fu

Neutron-rich P, Cl, and K isotopes, particularly those with neutron numbers around $N=28$, have attracted extensive experimental and theoretical interest. We utilize the \textit{ab initio} valence-space in-medium similarity renormalization…

核理论 · 物理学 2024-06-11 M. R. Xie , L. Y. Shen , J. G. Li , H. H. Li , Q. Yuan , W. Zuo

The fragment yield ratios were investigated in the fission of 238,233U targets induced by 14 MeV neutrons. The isoscaling behavior was typically observed for the isotopic chains of fragments ranging from the proton-rich to the most…

核实验 · 物理学 2009-11-10 M. Veselsky , G. A. Souliotis , M. Jandel

In the present work, we have done a systematic shell model study of $N=82$ and $N=126$ isotones. For the $N=82$ isotones, we have performed calculations using SN100PN interaction, while for $N=126$ isotones, we have used KHPE interaction.…

核理论 · 物理学 2022-06-10 Bharti Bhoy , Praveen C. Srivastava