High-spin structure of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>s</mml:mi><mml:mi>d</mml:mi></mml:mrow></mml:math>shell nuclei<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Na</mml:mi><mml:mprescripts /><mml:none /><mml:mn>25</mml:mn></mml:mmultiscripts></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ne</mml:mi><mml:mprescripts /><mml:none /><mml:mn>22</mml:mn></mml:mmultiscripts></mm

Williams, Jonathan; Ball, G. C.; Chester, A.; Choudhary, Priyanka; Domingo, T.; Garnsworthy, A. B.; Hackman, G.; Henderson, J. R.; Henderson, R.; Krücken, R.; Lubna, R. S.; Measures, J.; Paetkau, O.; Park, J.; Smallcombe, J.; Srivastava, P. C.; Starosta, K.; Svensson, C. E.; Whitmore, K.; Williams, M.

doi:10.1103/physrevc.102.064302

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…Apart from exploring the island of inversion in sodium isotopes, physicists have undertaken systematic theoretical investigations into other ground state properties. Magnetic dipole and electric quadrupole moments, deformation parameter , root-mean-square (rms) charge, and matter radii of odd-even nuclei Na were obtained with the EEdf1 interaction applied in the model space [26]; accordingly, the relationship between the neutron skin thickness and the electromagnetic moments for the exotic nucleus 31 Na was explored. The level structure of 25 Na at high excitation energy/high spin regime has been studied by γ ray spectroscopy and Doppler shifts lifetime measurements following 12 C( 18 O, ) 25 Na reactions [27].…”

Section: Introduction N = 20mentioning

confidence: 99%

Exploration of the ground state properties of neutron-rich sodium isotopes using the deformed relativistic mean field theory in complex momentumrepresentations with BCS pairings*

Luo 罗,

Liu 刘,

Guo 郭

2024

Chinese Phys. C

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This study explores the ground-state characteristics of neutron-rich sodium isotopes, encompassing two-neutron separation energies, root-mean-square radii, quadrupole moments of proton and neutron distributions, single-particle levels of bound and resonant states, neutron density distributions, and shapes. Simultaneously, special attention is given to the distinctive physical phenomena associated with these isotopes. The deformed relativistic mean field theory in complex momentum representations with BCS pairings (DRMF-CMR-BCS), employed in our work, provides resonant states with real physics, offering insights into deformed halo nuclei. Four effective interactions (NL3, NL3$^{*}$, PK1, and NLSH) were considered to assess the influence of continuum and deformation effects on halo structures. Calculations for odd-even nuclei $^{35-43}$Na revealed the dependence on the chosen effective interaction and the number of considered resonant states. Neutron occupation patterns near the Fermi surface, particularly in orbitals $1/2^{-}_3$ and $3/2^{-}_2$, were found to play a crucial role in halo formation. The study provided detailed insights into the density distributions, shape evolution, and structure of neutron-rich sodium isotopes, contributing valuable information to the field of nuclear physics.

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Section: Introduction N = 20mentioning

confidence: 99%

Exploration of the ground state properties of neutron-rich sodium isotopes using the deformed relativistic mean field theory in complex momentumrepresentations with BCS pairings*

Luo 罗,

Liu 刘,

Guo 郭

2024

Chinese Phys. C

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Ab initio no-core shell-model study of ^18-24Ne isotopes

Sarma

Srivastava

2023

J. Phys. G: Nucl. Part. Phys.

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We report ab initio no-core shell model (NCSM) study of 18-24Ne isotopes for energy spectra, electromagnetic properties, and point-proton radii using three realistic NN interactions. We have used inside nonlocal outside Yukawa (INOY), charge dependent Bonn 2000 (CDB2K) and the chiral next-to-next-to-next-to-leading order (N3LO) interactions. We are able to reach basis size up to Nmax = 6 for 18Ne and Nmax = 4 for the 19-24Ne isotopes with m-scheme dimensions up to 1.0 × 109 in case of 24Ne. We observed better results for INOY interaction in terms of the binding energies of ground state (g.s.), and overall all the three interactions provide good agreement with the experimental low-energy spectra. Our results for reduced M1 transition strengths and magnetic moments are close to the experimental values. We found that for long-range observables such as the E2 transition strengths, the electric quadrupole moments, and the point-proton radii (rp), we need higher Nmax calculations to obtain results comparable to the experimental data. We have observed almost 6 % increment in the converged rp as we increase the model space from Nmax = 4 to Nmax = 6.

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