The giant octupole resonance in deformed nuclei

Morsch, H. P.; Rogge, M.; Turek, P.; Decowski, P.; Zemło, L.; Mayer‐Böricke, C.; Martin, S.; Berg, G.P.A.; Katayama, Ichiro; Meißburger, J.; Römer, J.; Reich, J.; Wucherer, P.; Bräutigam, W.

doi:10.1016/0370-2693(82)90677-3

Cited by 23 publications

(4 citation statements)

References 12 publications

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“…For the HEOR, the strength distribution is rather broad, without a discernible peak, and the strength is shifted toward low excitation energies. This broadening of the HEOR in deformed nuclei and the strength shift to lower excitation energies were reported also by Morsch et al [25].…”

supporting

confidence: 86%

Compressional-Mode Giant Resonances in Deformed Nuclei

Itoh

Fujimura

Fujiwara

et al. 2003

Nuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions

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Background-free inelastic scattering spectra have been obtained for the Sm isotopes with 400 MeV α particles at forward angles (including 0 • ) to investigate the effect of deformation on the compressional-mode giant resonances. The strength distributions for the isoscalar giant resonances (L 3) have been extracted for the spherical nucleus 144 Sm and the deformed nucleus 154 Sm. We have observed that the effects of deformation are different for the low-and high-excitation-energy components of the isoscalar giant dipole resonance in 154 Sm. Evidence for the theoretically predicted coupling between the isoscalar dipole resonance and the high-energy octupole resonance is reported.

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supporting

confidence: 86%

Compressional-Mode Giant Resonances in Deformed Nuclei

Itoh

Fujimura

Fujiwara

et al. 2003

Nuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions

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“…In the IS octupoletransition-strength distributions, we can see a high-energy octupole resonance (HEOR) at around 25 MeV. Furthermore, we find a broadening of the width associated with the deformation as observed in the experiment [49]. We show the centroid energy of the HEOR and the low-energy octupole resonance (LEOR) in the Sm isotopes in Fig.…”

Section: Positive-parity Excitationmentioning

confidence: 54%

Shape evolution of giant resonances in Nd and Sm isotopes

Yoshida

Nakatsukasa

2013

Phys. Rev. C

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Giant multipole resonances in Nd and Sm isotopes are studied by employing the quasiparticle-random-phase approximation on the basis of the Skyrme energy-density-functional method. Deformation effects on giant resonances are investigated in these isotopes which manifest a typical nuclear shape change from spherical to prolate shapes. The peak energy, the broadening, and the deformation splitting of the isoscalar giant monopole (ISGMR) and quadrupole (ISGQR) resonances agree well with measurements. The magnitude of the peak splitting and the fraction of the energy-weighted strength in the lower peak of the ISGMR reflect the nuclear deformation. The experimental data on ISGMR, ISGDR, and ISGQR are consistent with the nuclear-matter incompressibility $K \simeq 210-230$ MeV and the effective mass $m^*_0/m \simeq 0.8-0.9$. However, the high-energy octupole resonance (HEOR) in $^{144}$Sm seems to indicates a smaller effective mass, $m^*_0/m \simeq 0.7-0.8$. A further precise measurement of HEOR is desired to determine the effective mass.Comment: Submitted to Phys. Rev.

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“…Inelastic scattering angular distributions for three 208 Pb excited states in different bombarding energies. The data were obtained from [23,24,38,42,43]. therefore, it is the result of the CCint as defined in the earlier sections.…”

Section: Discussionmentioning

confidence: 99%

Role of inelastic couplings in ⁴He + ²⁰⁸Pb elastic scattering in a wide energy range

Chamon¹,

Gasques²,

Zamora³

2022

J. Phys. G: Nucl. Part. Phys.

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The phenomenological strengths of the real part of the optical potential, obtained from elastic scattering data analyses within the optical model approach, present signiﬁcant energy-dependence. This behavior has been associated to the intrinsic energy-dependence of the eﬀective nucleon-nucleon interaction. However, in earlier works, we proposed that at least part of this dependence can arise from the eﬀect of couplings to inelastic states of the nuclei. In order to deepen this study, in this paper we present extensive data analyses for the elastic scattering and inelastic excitation of 111 states of 208Pb, for the 4He + 208Pb system in a wide energy range. With the purpose of comparison, the theoretical cross sections are obtained in diﬀerent approaches for the imaginary part of the potential, and within both contexts: optical model (distorted wave Born approximation) and coupled-channel calculations.

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The giant octupole resonance in deformed nuclei

Cited by 23 publications

References 12 publications

Compressional-Mode Giant Resonances in Deformed Nuclei

Compressional-Mode Giant Resonances in Deformed Nuclei

Shape evolution of giant resonances in Nd and Sm isotopes

Role of inelastic couplings in ⁴He + ²⁰⁸Pb elastic scattering in a wide energy range

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The giant octupole resonance in deformed nuclei

Cited by 23 publications

References 12 publications

Compressional-Mode Giant Resonances in Deformed Nuclei

Compressional-Mode Giant Resonances in Deformed Nuclei

Shape evolution of giant resonances in Nd and Sm isotopes

Role of inelastic couplings in 4He + 208Pb elastic scattering in a wide energy range

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Product

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Role of inelastic couplings in ⁴He + ²⁰⁸Pb elastic scattering in a wide energy range