Monopole giant resonance in 100-132Sn, 144Sm and 208Pb

Kvasil J, Božík D, Repko A, Reinhard PG, Nesterenko VO, Kleinig W (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Physica Scripta

Book Volume: 90

Article Number: 114007

Journal Issue: 11

DOI: 10.1088/0031-8949/90/11/114007

Abstract

The isoscalar giant monopole resonance (GMR) in spherical nuclei ^100-132Sn, ¹⁴⁴Sm and ²⁰⁸Pb is investigated within the Skyrme random-phase approximation for a variety of Skyrme forces and different pairing options. The calculated GMR strength functions are directly compared to the available experimental distributions. It is shown that, in accordance with the results of other groups, the description of GMR in Sn and heavier Sm/Pb nuclei needs different values of nuclear incompressibilty, K≈ 200 or 230 MeV, respectively. Thus, none of the Skyrme forces used can simultaneously describe GMR in these nuclei. The GMR peak energy in open-shell ¹²⁰Sn is found to depend on the isoscalar effective mass, which might be partly used to solve the above problem. Some important aspects of the problem, such as discrepancies of available experimental data and proper treatment of the volume and surface compression in finite nuclei, are briefly discussed.

Authors with CRIS profile

Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Involved external institutions

Univerzita Karlova v Praze / Charles University in Prague

Czech Republic (CZ) Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ)

Russian Federation (RU)

How to cite

APA:

Kvasil, J., Božík, D., Repko, A., Reinhard, P.-G., Nesterenko, V.O., & Kleinig, W. (2015). Monopole giant resonance in 100-132Sn, 144Sm and 208Pb. Physica Scripta, 90(11). https://doi.org/10.1088/0031-8949/90/11/114007

MLA:

Kvasil, J., et al. "Monopole giant resonance in 100-132Sn, 144Sm and 208Pb." Physica Scripta 90.11 (2015).

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