Self-Consistent Study of Nuclear Charge Radii in Ar–Ti Region

Fully self-consistent study of the charge radii in the long chains of isotopes from Ar to Ti is presented. The neutron-deficient and neutron-rich nuclei with pairing in both neutron and proton sectors, as well as the (semi-) magic nuclei around the closed neutron shells at , 28, 32 are treated withi...

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Bibliographic Details
Published in:Physics of atomic nuclei 2022-06, Vol.85 (3), p.222-230
Main Authors: Borzov, I. N., Tolokonnikov, S. V.
Format: Article
Language:English
Subjects:
Comparative analysis
Deformation effects
Elementary excitations
Isotopes
Nuclei (nuclear physics)
NUCLEI/Theory
Particle and Nuclear Physics
Physics
Physics and Astronomy
Specific gravity
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Summary:Fully self-consistent study of the charge radii in the long chains of isotopes from Ar to Ti is presented. The neutron-deficient and neutron-rich nuclei with pairing in both neutron and proton sectors, as well as the (semi-) magic nuclei around the closed neutron shells at , 28, 32 are treated within the Energy Density Functional (EDF) approach with the Fayans functional DF3-a. The performance of the DF3-a and its recent option Fy( , HFB) is analyzed in describing the absolute and differential rms radii. The scale of odd–even staggering is compared with one found in the CERN-CRIS experiments for Ca, K isotopes. The DF3-a calculations are consistent with magic behavior of charge radii in K isotopes at . A non-regular -dependent contribution due to the quasiparticle–phonon coupling is responsible for the universal increase of the charge radii after crossing the neutron shell at . Possible effects of deformation and higher power density gradient terms in the surface and pairing parts of the functional are mentioned.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778822030061