Evolution of the isoscalar giant monopole resonance in the Ca isotope chain

Olorunfunmi, S. D.; Neveling, R.; Carter, J.; Neumann‐Cosel, P. von; Usman, I. T.; Adsley, P.; Bahini, A.; Baloyi, L. P. L.; Brümmer, J. W.; Donaldson, L. M.; Jivan, H.; Kheswa, N. Y.; Li, K.C.W.; Marín-Lámbarri, D. J.; Molema, P. T.; Moodley, C. S.; O’Neill, G.; Papka, P.; Pellegri, L.; Pesudo, V.; Sideras‐Haddad, E.; Smit, F. D.; Steyn, G. F.; Aava, A.A.; Diel, F.; Dunkel, F.; Jones, P.; Karayonchev, V.

doi:10.1103/physrevc.105.054319

Phys. Rev. C

2022

DOI: 10.1103/physrevc.105.054319

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Evolution of the isoscalar giant monopole resonance in the Ca isotope chain

S. D. Olorunfunmi¹,

R. Neveling²,

J. Carter³

et al.

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2023

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Cited by 10 publications

(2 citation statements)

References 23 publications

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“…1, we show the strength functions of the ISGMR, obtained either in the framework of (Q)RPA by using a smoothing with Lorentzians having a width of 1 MeV (dash-dotted [black] line), or within (Q)RPA+(Q)PVC (solid [blue] line), using the SV-K226 Skyrme force, in the even-even 112-124 Sn, 48 Ca, and 208 Pb nuclei. We compare the results with the experimental ones ([green] crosses) [8,15,39]. In general, with the inclusion of (Q)PVC effects, the results are significantly improved with respect to (Q)RPA, so we can achieve a good description of data both in the light 48 Ca isotope, medium-heavy Sn isotopes, and heavy 208 Pb.…”

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confidence: 92%

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Toward a Unified Description of Isoscalar Giant Monopole Resonances in a Self-Consistent Quasiparticle-Vibration Coupling Approach

Li,

Niu,

Colò

2023

Phys. Rev. Lett.

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The nuclear incompressibility is a key parameter of the nuclear Equation of State (EoS) that can be extracted from the measurements of the so-called "breathing mode" of finite nuclei. The most serious discrepancy so far is between values extracted from Pb and Sn, that has provoked the longstanding question "Why is tin so soft?". To solve this puzzle, a fully self-consistent Quasiparticle Random-Phase Approximation (QRPA) plus Quasiparticle-Vibration Coupling (QPVC) approach based on Skyrme-Hartree-Fock-Bogoliubov is developed. We show that the many-body correlations introduced by QPVC, which shift the ISGMR energy in Sn isotopes by about 0.4 MeV more than the energy in 208 Pb, play a crucial role in providing a unified description of the ISGMR in Sn and Pb isotopes. The best description of the experimental strength functions is given by SV-K226 and KDE0, which are characterized by incompressibility values K ∞ = 226 MeV and 229 MeV, respectively, at mean field level.

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confidence: 92%

“…In this Letter, a fully self-consistent Quasiparticle Random-Phase Approximation plus Quasiparticle- The SV-K226 Skyrme force is used. The experimental data are given by green crosses [8,15,39].…”

mentioning

confidence: 99%

Toward a Unified Description of Isoscalar Giant Monopole Resonances in a Self-Consistent Quasiparticle-Vibration Coupling Approach

Li,

Niu,

Colò

2023

Phys. Rev. Lett.

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Nuclear Structure and Decay Data for A=44 Isobars

Singh

2023

Nuclear Data Sheets

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Excitation of the isoscalar giant monopole resonance and incompressibility of nuclear matter: resolution of a long-standing puzzle

Harakeh

2023

Science Bulletin

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Evolution of the isoscalar giant monopole resonance in the Ca isotope chain

Cited by 10 publications

References 23 publications

Toward a Unified Description of Isoscalar Giant Monopole Resonances in a Self-Consistent Quasiparticle-Vibration Coupling Approach

Toward a Unified Description of Isoscalar Giant Monopole Resonances in a Self-Consistent Quasiparticle-Vibration Coupling Approach

Nuclear Structure and Decay Data for A=44 Isobars

Excitation of the isoscalar giant monopole resonance and incompressibility of nuclear matter: resolution of a long-standing puzzle

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