Evolution of Nuclear Shapes in Light Nuclei from Proton- to Neutron-rich Side

Kumar, Pankaj; Thakur, Virender; Thakur, Sunil; Kumar, Vikesh; Dhiman, Shashi K.

doi:10.5506/aphyspolb.52.401

Cited by 8 publications

(8 citation statements)

References 1 publication

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“…For 26 S, shell model predictions with all four interactions have been done. USDB interaction gives better agreement with the experimental data for Si and S isotopes, except for 34 Si. For 34 Si, result obtained from JISP16 interaction is in good agreement with experimental value.…”

Section: E Ar Isotopessupporting

confidence: 58%

“…For JISP16 and USDB interactions, s 1/2 and d 3/2 orbitals almost overlap. As mentioned in the previous section, there is high-lying 2 + 1 state for 34 Si predicted by DJ16A and USDB interactions. This high excitation energy is due to sufficiently large energy difference between d 5/2 and s 1/2 orbitals.…”

Section: Effective Single-particle Energies: Monopole Propertiessupporting

confidence: 55%

“…Only the N3LO interaction gives correct g.s. spin for 34 Cl, opposite to the case of 32 Cl. Ordering of the three lowest states is correctly reproduced by DJ16A interaction for 35 Cl.…”

Section: CL Isotopesmentioning

confidence: 64%

“…In case of 32 S, DJ16A and USDB interactions give opposite sign compared to N3LO and JISP16 for quadrupole moment of 2 + and 4 + states. Negative sign of quadrupole moment with DJ16A interaction is correctly reproduced for 2 + in 32 S while it is unable to reproduce the sign for 34 S. Magnetic moments for 32,34 S corresponding to all interactions are in good agreement with experiment. Experimentally, magnetic moment for g.s.…”

Section: Electromagnetic Propertiesmentioning

confidence: 67%

“…Nuclear structure properties of sd-shell nuclei including proton and neutron drip lines have been studied in several theoretical and experimental works. In [34], authors have implemented relativistic Hartree Bogoliubov model with density dependent meson-exchange and pairing interactions to study nuclear shapes of Si, S and Ar. They found existence of magic numbers at N = 8 and 20 with spherical shape in these isotopic chains and disappearance of N = 28 shell closure with a finite deformation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Ab initio description of Si, P, S, Cl and Ar isotopes in sd-shell

Choudhary¹,

Srivastava²

2022

Preprint

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In the present work, we have reported comprehensive study of the sd-shell nuclei in the range Z = 14 − 18 with neutron number varying from N = 9 to N = 20 using the microscopic effective valence shell interactions. These effective sd-shell interactions are developed using the ab initio nocore shell model wave functions and the Okubo-Lee-Suzuki transformation method. The valence shell effective interactions, which are used in this project, are N3LO, JISP16 and DJ16A interactions. For comparison, we have also performed shell model calculations with the empirical USDB interaction. Theoretically calculated shell model results are compared with the experimental data, to check the predictive strength of the microscopic interactions. It is found that the binding energies of the ground states are better reproduced with the DJ16A interaction as compared to other microscopic interactions. Spin-tensor decomposition of two-body interaction is presented to understand the contributions from central, vector and tensor components into these interactions. Electromagnetic properties of these isotopic chains have been studied. Spectroscopic strengths of 23 Al(d,n) 24 Si are calculated for the newly performed experiment at NSCL. The beta-decay properties of 32 Ar are also determined for recently available experimental data.