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相关论文: New magicity $N=32$ and $34$ triggered by strong c…

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Neutron rich Ca and Ni nuclei have been studied in spherical Relativistic Mean Field formalism in co-ordinate space. A delta interaction has been has been adopted to treat the pairing correlations for the neutrons. Odd nuclei have been…

核理论 · 物理学 2009-11-11 Madhubrata Bhattacharya , G. Gangopadhyay

A new mass formula capable of explaining the binding energies of almost all the known isotopes from Li to Bi is prescribed. In addition to identifying the new magic number at neutron number N=16 (Z=7-9), pseudo-magic numbers at N=14…

核理论 · 物理学 2007-05-23 C. Samanta , S. Adhikari

The neutron numbers N = 32 and 34 are new magic numbers suggested in neutron-rich $pf$-shell nuclei. In this article, we discuss the experimental observables and state-of-the-art theoretical calculations that characterize and explain the…

核实验 · 物理学 2025-09-16 Hongna Liu , Sidong Chen , Frank Browne

N=Z nuclei above Ni are understood to be waiting-point nuclei in the rp-process nucleosynthesis. Investigating the experimental isotope shifts in Kr isotopes near the proton drip-line, we have discovered that N=Z rp-process nuclei…

核理论 · 物理学 2009-07-07 M. M. Sharma , J. K. Sharma

In this paper, we investigate features of the ground state of some nuclei far from the stability for isotope chains with proton numbers Z=18 and 20. Our aim is to predict the eventual existence of magic numbers in these exotic nuclei. For…

核理论 · 物理学 2020-03-31 M. El Adri , M. Oulne

The reduction of the neutron spin-orbit splitting $2p_{3/2} - 2p_{1/2}$ between the $^{41}$Ca and $^{35}$Si isotones is a unique feature throughout the chart of nuclides, as the spin-orbit splitting usually increases with $A$. Moreover, its…

核理论 · 物理学 2020-08-27 O. Sorlin , F. de Oliveira , J. P. Ebran

We investigate the magicity of the isotopes $^{52}$Ca and $^{54}$Ca, that was recently confirmed by two experimental measurements, and relate it to like--particle and neutron--proton tensor effects within a mean--field description. By…

核理论 · 物理学 2015-06-18 Marcella Grasso

The ground state bulk properties such as binding energy, root-mean-square radius, pairing energy, nuclear density distributions, and single-particle energies are calculated for the isotopic chain of Ca, Sn, Pb, and Z = 120 nuclei. The…

核理论 · 物理学 2022-01-24 Jeet Amrit Pattnaik , R. N. Panda , M. Bhuyan , S. K. Patra

Various ground state properties are explored for full isotonic(isotopic) chain of neutron number N(proton number Z)$=$40 using different families of Relativistic Mean-Field theory. Several properties such as nucleon separation energies,…

核理论 · 物理学 2021-08-04 R. Sharma , A. Jain , M. Kaushik , S. K. Jain , G. Saxena

The apparent splitting between orbitals that are spin-orbit partners can be substantially influenced by the effects of finite binding. In particular, such effects can account for the observed decrease in separation of the neutron $1p_{3/2}$…

核理论 · 物理学 2017-11-08 B. P. Kay , C. R. Hoffman , A. O. Macchiavelli

Shell structure in the neutron-rich Ca and Ni nuclei is investigated by the spherical Hartree-Fock calculations with the semi-realistic $NN$ interactions. Specific ingredients of the effective interaction, particularly the tensor force,…

核理论 · 物理学 2014-11-20 H. Nakada

The last proton bound calcium isotope $^{35}$Ca has been studied for the first time, using the $^{37}$Ca($p, t$)$^{35}$Ca two neutron transfer reaction. The radioactive $^{37}$Ca nuclei, produced by the LISE spectrometer at GANIL,…

Doubly magic nuclei have a simple structure and are the cornerstones for entire regions of the nuclear chart. Theoretical insights into the supposedly doubly magic $^{78}$Ni and its neighbors are challenging because of the extreme…

核理论 · 物理学 2016-10-26 G. Hagen , G. R. Jansen , T. Papenbrock

Melting of N=20 shell and development of N = 16 and N = 34 shells for neutron-rich nuclei have been studied extensively through inclusion of tensor interaction in Skyrme Hartree Fock theory optimized to reproduce the splitting neutron 1f…

核理论 · 物理学 2015-06-17 Rupayan Bhattacharya

We have employed RMF+BCS (relativistic mean-field plus BCS) approach to study behaviour of pf shell with the help of ground state properties of even-even nuclei. Our present investigations include separation energies , deformations, single…

核理论 · 物理学 2017-08-02 G. Saxena , M. Kaushik

Spin-orbit splitting is an essential ingredient for our understanding of the shell structure in nuclei. One of the most important advantages of relativistic mean-field (RMF) models in nuclear physics is the fact that the large spin-orbit…

核理论 · 物理学 2017-05-10 Konstantinos Karakatsanis , G. A. Lalazissis , Peter Ring , Elena Litvinova

New magic numbers have been discovered in the neutron-rich region of the nuclear chart. However, there has been a lack of research on proton-rich nuclei. $^{22}$O, the mirror nucleus of $^{22}$Si, is a double-magic nucleus bearing a high…

核理论 · 物理学 2025-12-18 J. G. Li , H. H. Li , S. Zhang , Y. M. Xing , W. Zuo

Empirical drops in ground-state nuclear polarizabilities indicate deviations from the effect of giant dipole resonances and may reveal the presence of shell effects in semi-magic nuclei with neutron magic numbers $N=50$, 82 and 126. Similar…

核理论 · 物理学 2019-03-05 Cebo Ngwetsheni , Nico Orce

By using a non-relativistic independent particle model we investigate the mechanism promoting 34 as new magic number. We carried out Hartree-Fock plus Bardeen-Cooper-Schrieffer and Quasi-particle Random Phase Approximation calculations by…

核理论 · 物理学 2019-09-23 G. Co' , M. Anguiano , A. M. Lallena

The collapse of the canonical $N=28$ magic number in nuclei with $Z<20$ has drawn significant interest as it relates to the emergence of an island of inversion centered on $^{42}$Si and $^{44}$S. In particular, interactions between the $\pi…

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