Deformation effects in Giant Monopole Resonance

J. Kvasil , V.O. Nesterenko , A. Repko , D. Bozik , W. Kleinig , P.-G. Reinhard

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classification ⚛️ nucl-th

keywords giantresonancedeformationdeformedeffectsmonopolequadrupoleskyrme

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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.

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Deformation effects in Giant Monopole Resonance

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