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Brandenburg, S.; Лео, Р. Де; Drentje, A.G.; Harakeh, M.N.; Janszen, H.; Woude, A. van der

doi:10.1103/physrevlett.49.1687

Cited by 35 publications

(10 citation statements)

References 23 publications

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“…Another set of calculations, with the SkM*, SVbas, and SkP δ interactions, further confirms that the E0 peak at E x ∼16 MeV is caused by the deformation-induced coupling of the ISGMR with the K=0 part of the ISGQR [165]. This is the first time that such a splitting had been observed in a light-mass nucleus, indeed in any nucleus other than the well-deformed Sm nuclei (as discussed above) and 238 U [166]. A similar effect has since been observed in the oblate-deformed nucleus 28 Si as well [167].…”

Section: Effects Of Deformation On Isgmr and Isgdrsupporting

confidence: 56%

The compression-mode giant resonances and nuclear incompressibility

Garg

Colò

2018

Progress in Particle and Nuclear Physics

238

186

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The compression-mode giant resonances, namely the isoscalar giant monopole and isoscalar giant dipole modes, are examples of collective nuclear motion. Their main interest stems from the fact that one hopes to extrapolate from their properties the incompressibility of uniform nuclear matter, which is a key parameter of the nuclear Equation of State (EoS). Our understanding of these issues has undergone two major jumps, one in the late 1970s when the Isoscalar Giant Monopole Resonance (ISGMR) was experimentally identified, and another around the turn of the millennium since when theory has been able to start giving reliable error bars to the incompressibility. However, mainly magic nuclei have been involved in the deduction of the incompressibility from the vibrations of finite nuclei.The present review deals with the developments beyond all this. Experimental techniques have been improved, and new open-shell, and deformed, nuclei have been investigated. The associated changes in our understanding of the problem of the nuclear incompressibility are discussed. New theoretical models, decay measurements, and the search for the evolution of compressional modes in exotic nuclei are also discussed.

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Section: Effects Of Deformation On Isgmr and Isgdrsupporting

confidence: 56%

The compression-mode giant resonances and nuclear incompressibility

Garg

Colò

2018

Progress in Particle and Nuclear Physics

238

186

View full text Add to dashboard Cite

show abstract

“…The fragmented ISGMR strength in lighter nuclei further renders it nearly impossible to identify effects such as the theoretically predicted splitting of the ISGMR due to ground-state deformation. While the splitting of the isovector giant dipole resonance (IVGDR) due to deformation has been documented in a number of nuclei [8], a similar effect on the ISGMR strength has been reported so far only in the deformed Sm nuclei [10][11][12][13] and in the fission decay of 238 U [14]; this "ISGMR splitting" is understood in terms of the mixing of the ISGMR with the K π = 0 + component of the ISGQR [10]. Recent microscopic calculations [15,16] in the deformed Hartree-Fock-Bogoliubov (HFB) approach and the quasiparticle random-phase approximation (QRPA) with a Skyrme and Gogny energy-density functional have shown that the ISGMR strength distribution exhibits a two-peak structure due to deformation even in light-mass nuclei.…”

mentioning

confidence: 89%

Splitting of ISGMR strength in the light-mass nucleus 24 Mg due to ground-state deformation

et al. 2015

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“…High strength is also predicted between 20 and 30 MeV, exhausting 20% of the B(E0) energy-weighted sum rule (EWSR). The mean excitation [32,33] and 238 U (e, e fission) [34] reactions studies. The peak related to the coupling of the quadrupole mode is the first one, according to the results shown in Fig.…”

Section: Multipole Responses For 238 Umentioning

confidence: 99%

Giant resonances inU238within the quasiparticle random-phase approximation with the Gogny force

et al. 2011

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Fully consistent axially-symmetric deformed quasiparticle random-phase approximation (QRPA) calculations have been performed, using the same Gogny D1S effective force for both the Hartree-Fock-Bogolyubov mean field and QRPA matrix. New implementation of this approach leads to the applicability of QRPA to heavy deformed nuclei. Giant resonances and low-energy collective states for monopole, dipole, quadrupole, and octupole modes are predicted for the heavy deformed nucleus 238 U and compared with experimental data.

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Fission Decay of the Isoscalar Giant Monopole Resonance inU238

Cited by 35 publications

References 23 publications

The compression-mode giant resonances and nuclear incompressibility

The compression-mode giant resonances and nuclear incompressibility

Splitting of ISGMR strength in the light-mass nucleus 24 Mg due to ground-state deformation

Giant resonances inU238within the quasiparticle random-phase approximation with the Gogny force

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