Isoscalar and isovector giant resonances in 92,94,96,98,100$\mathrm{Mo}$ and 90,92,94$\mathrm{Zr}$

Bonasera, G.; Shlomo, S.; Youngblood, D. H.; Lui, Y. -W.; None, Krishichayan; Button, J.

doi:10.1016/j.nuclphysa.2019.121612

Isoscalar and isovector giant resonances in ^{92,94,96,98,100}$$\mathrm{Mo}$$ and ^90,92,94$$\mathrm{Zr}$$

Journal Article · Mon Aug 19 00:00:00 EDT 2019 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2019.121612· OSTI ID:1801002

^[1]; Shlomo, S. ^[2]; Youngblood, D. H. ^[2]; Lui, Y. -W. ^[2]; None, Krishichayan ^[3]; Button, J. ^[2]

Texas A & M University, College Station, TX (United States); Texas A&M University
Texas A & M University, College Station, TX (United States)
Duke University, Durham, NC (United States). Triangle Universities Nuclear Laboratory

The response functions, S(E), and centroid energies, E_CEN, of the isoscalar and isovector giant resonances of multipolarity L = 0 - 3 in ^{92,94,96,98,100}Mo and ^90,92,94Zr have been calculated employing the spherical Hartree-Fock (HF) based random phase approximation (RPA) method, using the Skyrme-type effective nucleon-nucleon interaction. In particular, we investigate the recent experimental results of the uncharacteristic behavior of E_CEN for the isoscalar giant resonances, by extending our HF-based RPA calculations with only the KDE0v1 interaction to 32 additional Skyrme interactions. The main result of our investigation is that we find significant disagreements between the theoretical and the experimental values of E_CENfor isoscalar giant monopole and dipole resonance of some nuclei. For the isoscalar giant octupole resonance we find the theoretical values of the E_CEN to be well above the experimental results. We also study the sensitivity of E_CEN to nuclear matter (NM) properties, including the effective mass, the incompressibility coefficient and the symmetry energy at saturation density, by determining the Pearson linear correlation coefficient between the calculated values of E_CENand the various nuclear matter properties of each Skyrme parametrization. So, for the isovector giant dipole resonance we find good agreement between the experimental and theoretical values of E_CEN for Skyrme interactions with values of the enhancement coefficient of the energy weighted sum rule, κ, in the range between 0.25 – 0.70

View Accepted Manuscript (DOE)

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

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

Grant/Contract Number:: FG03-93ER40773

OSTI ID:: 1801002

Alternate ID(s):: OSTI ID: 1703634
OSTI ID: 22888925

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Journal Issue: C Vol. 992; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Isoscalar and isovector giant resonances in 92,94,96,98,100$$\mathrm{Mo}$$ and 90,92,94$$\mathrm{Zr}$$

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References (32)

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