The isospin admixture of the ground state and the properties of the isobar analog resonances in medium and heavy mass nuclei |
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| Authors: | D I Salamov T Babacan A Kücükbursa S Unlü I Mara˙s |
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| Institution: | (1) Department of Physics, Anadolu University, Eskis.ehir, Turkey;(2) Department of Physics, Celal Bayar University, Manisa, Turkey;(3) Department of Physics, Dumlupynar University, Kütahya, Turkey |
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| Abstract: | Within the framework of quasiparticle random phase approximation (QRPA), Pyatov-Salamov method 23] for the self-consistent
determination of the isovector effective interaction strength parameter, restoring a broken isotopic symmetry for the nuclear
part of the Hamiltonian, is used. The isospin admixtures in the ground state of the parent nucleus, and the isospin structure
of the isobar analog resonance (IAR) state were investigated with the inclusion of the pairing correlations between nucleons
for the medium and heavy mass regions: 80 <A < 90, 102 <A < 124, and 204 <A < 214. It was determined that the influence of the pairing interaction between nucleons on the isospin admixtures in the
ground state and the isospin structure of the IAR state is more pronounced for the light isotopes (N ≈ Z) of the investigated nuclei |
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| Keywords: | Shell model Hartree-Fock and random-phase approximation beta decay |
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