Isoscalar and isovector giant resonances in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni

Bonasera, G.; Shlomo, S.; Youngblood, D. H.; Lui, Y. -W.; Button, J.; Chen, X.

doi:10.1016/j.nuclphysa.2021.122159

Isoscalar and isovector giant resonances in ⁴⁴Ca, ⁵⁴Fe, ^64,68Zn and ^56,58,60,68Ni

Journal Article · Wed Feb 17 00:00:00 EST 2021 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2021.122159· OSTI ID:1850044

^[1]; Shlomo, S. ^[2]; Youngblood, D. H. ^[2]; Lui, Y. -W. ^[2]; Button, J. ^[2]; Chen, X. ^[3]

Texas A & M Univ., College Station, TX (United States). Cyclotron Inst.; Texas A & M Univ., College Station, TX (United States)
Texas A & M Univ., College Station, TX (United States). Cyclotron Inst.
Medical College of Wisconsin, Milwaukee, WI (United States). Dept. of Radiation Oncology

We have studied the uncharacteristic behavior of the measured values of the isoscalar and isovector centroid energies, E_CEN, of nuclear giant resonances of multipolarity from L = 0 to L = 3 in ⁴⁴Ca, ⁵⁴Fe, ^64,68Zn and ^56,58,60,68Ni. For this purpose, we carried out calculations of E_CEN within the spherical Hartree-Fock (HF)-based random phase approximation (RPA) theory with 33 distinct Skyrme-like effective nucleon-nucleon interactions. We have also determined the Pearson linear correlation coefficients between centroid energies, obtained from the HF-RPA, and the various properties of nuclear matter (NM) of each interaction and determined the sensitivity of E_CEN to NM properties. We compared the theoretical values of E_CEN obtained from the HF-RPA calculations with experimental data and discuss the results, pointing out significant disagreements between theoretical and experimental values. We note in particular, that we obtain good agreement for the theoretical E_CEN of the isovector giant dipole resonance and the available experimental data.

View Accepted Manuscript (DOE)

Research Organization:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

Grant/Contract Number:: FG02-93ER40773

OSTI ID:: 1850044

Alternate ID(s):: OSTI ID: 1781886

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Journal Issue: C Vol. 1010; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Isoscalar and isovector giant resonances in ⁴⁴Ca, ⁵⁴Fe, ^64,68Zn and ^56,58,60,68Ni