Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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A. H. Taqi^*, W. A. Mansour

Department of Physics, College of Science, Kirkuk University, Kirkuk, Iraq

^*Corresponding author. E-mail address: alitaqi@uokirkuk.edu.iq

Abstract: Using self-consistent Bardeen - Cooper - Schriffer + Hartree - Fock and quasiparticle random phase approximation, the isoscalar giant quadrupole resonance in the isotopes of ^{112,114,116,118,120,122,124}Sn has been studied in this work. Five sets of Skyrme-type interactions of different values of the nuclear matter incompressibility coefficient K_NM and effective mass m^*/m are used in the calculations. Additionally, the impact of different types of pairing forces (i.e., volume, surface, and mixed) is examined. Comparisons are made between the computed strength distributions, centroid energies E_cen, scaled energies E_s, and constrained energies E_con of the isoscalar giant quadrupole resonance and the available experimental data. Analysis is done on the relationships between K_NM and m^*/m, and the estimated properties.

Keywords: strength distribution, Skyrme force, Hartree - Fock + Bardeen - Cooper - Schrieffer, quasiparticle random phase approximation.

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