Deformation effects in Giant Monopole Resonance

Abstract

The isoscalar giant monopole resonance (GMR) in Samarium isotopes (from spherical ${}^{144}$Sm to deformed ${}^{148-154}$Sm) is investigated within the Skyrme random-phase-approximation (RPA) for a variety of Skyrme forces. The exact RPA and its separable version (SRPA) are used for spherical and deformed nuclei, respectively. The quadrupole deformation is shown to yield two effects: the GMR broadens and attains a two-peak structure due to the coupling with the quadrupole giant resonance.

6 pages, 4 figures, proceedings of 11th Intern. Spring Seminar on Nuclear Physics (Ischia, Italy, May 12-16, 2014)

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Cited by in corpus (2)

• Deformation-induced splitting of isoscalar E0 giant resonance: Skyrme random-phase-approximation analysis
• Low-energy monopole strength in spherical and deformed nuclei : cluster and soft modes