Microscopic analysis of the breathing mode in

Kamerdzhiev, S.; Speth, J.; Tertychny, G.

doi:10.1007/s100500050421

Cited by 12 publications

(45 citation statements)

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“…The E0 strength distributions obtained by Hamamoto et al [20] and by Kamerdzhiev et al [21] for 40 Ca and 48 Ca are compared to our measured distributions in Fig. 9.…”

Section: Description Of Microscopic Calculationsmentioning

confidence: 56%

“…Kamerdzhiev et al [21] have carried out microscopic calculations in continuum random-phase approximation (RPA) including one particle-one hole (1p1h) coupled to phonon configurations for several nuclei including 48 Ca. Unfortunately, Kamerdzhiev's calculations were done with effective interactions (Migdal type interactions) which are unrelated to the adopted mean-fields (Wood-Saxon potentials) and therefore cannot be used to determine the nuclear matter incompressibility coefficient.…”

Section: Description Of Microscopic Calculationsmentioning

confidence: 99%

“…[20], Ref. [21] and with fully self-consistent HF-based RPA obtained [22] with various Skyrme type, SGII [45], SKM* [46], KDE0 [47]and SK255 [48] interactions. The selected Skyrme interactions are associated with a wide range of nuclear matter [NM] incompressibility coefficients K = 215 -255 MeV and a wide range of NM symmetry energy coefficients J = 27 -37 MeV.…”

Section: A 3 Mevmentioning

confidence: 99%

“…The values from Ref. [20] and [21] are calculated over the full energy range shown in the references, while those from our calculations are shown both for the experimental energy range (9.5 -40 MeV) and over the full range of the calculations (0 -60 MeV). In Figure 11 we show the centroid energies as a function of K NM .…”

Section: A 3 Mevmentioning

confidence: 99%

“…We also compare our experimental results with theoretical calculations of Refs. [20,21] and fully self-consistent Hartree-Fock based RPA calculations [22] with commonly used Skyrme type interactions, using the method of Refs. [23,24], and emphasize, in particular, the importance of self-consistency.…”

Section: Introductionmentioning

confidence: 99%

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Isoscalar giant resonances inCa48

et al. 2011

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The giant resonance region from 9.5 MeV < E x < 40 MeV in 48 Ca has been studied with inelastic scattering of 240 MeV α particles at small angles, including 0º. 95±11% of E0 energy weighted sum rule (EWSR), 10 16 83 + − % of E2 EWSR and 137±20% of E1 EWSR were located below E x = 40 MeV. A comparison of the experimental data with calculated results for the isoscalar giant monopole resonance, obtained within the mean-field based random phase approximation, is also given.

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“…The E0 strength distributions obtained by Hamamoto et al [20] and by Kamerdzhiev et al [21] for 40 Ca and 48 Ca are compared to our measured distributions in Fig. 9.…”

Section: Description Of Microscopic Calculationsmentioning

confidence: 56%

Section: Description Of Microscopic Calculationsmentioning

confidence: 99%

Section: A 3 Mevmentioning

confidence: 99%

Section: A 3 Mevmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Isoscalar giant resonances inCa48

et al. 2011

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Extended theory of finite Fermi systems: collective vibrations in closed shell nuclei

Kamerdzhiev¹,

Speth²,

Tertychny³

2004

Physics Reports

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176

213

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We review an extension of Migdal's Theory of Finite Fermi Systems which has been developed and applied to collective vibrations in closed shell nuclei in the past ten years. This microscopic approach is based on a consistent use of the Green function method. Here one considers in a consistent way more complex 1p1h⊗phonon configurations beyond the RPA correlations. Moreover, these configurations are not only included in the excited states but also explicitly in the ground states of nuclei. The method has been applied to the calculation of the strength distribution and transition densities of giant electric and magnetic resonances in stable and unstable magic nuclei. Using these microscopic transition densities, cross sections for inelastic electron and alpha scattering have been calculated and compared with the available experimental data. The method also allows one to extract in a consistent way the magnitude of the strength of the various multipoles in the energy regions in which several multipoles overlap. We compare the microscopic transition densities, the strength distributions and the various multipole strengths with their values extracted phenomenologically.

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A microscopic investigation of the transition form factor in the region of collective multipole excitations of stable and unstable nuclei

Papakonstantinou¹,

Mavrommatis²,

Wambach³

et al. 2005

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

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We have used a self-consistent Skyrme-Hartree-Fock plus Continuum-RPA model to study the low-multipole response of stable and neutron/proton-rich Ni and Sn isotopes. We focus on the momentum-transfer dependence of the strength distribution, as it provides information on the structure of excited nuclear states and in particular on the variations of the transition form factor (TFF) with the energy. Our results show, among other things, that the TFF may show significant energy dependence in the region of the isoscalar giant monopole resonance and that the TFF corresponding to the threshold strength in the case of neutron-rich nuclei is different compared to the one corresponding to the respective giant resonance. Perspectives are given for more detailed future investigations.

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Microscopic analysis of the breathing mode in

Cited by 12 publications

References 0 publications

Isoscalar giant resonances inCa48

Isoscalar giant resonances inCa48

Extended theory of finite Fermi systems: collective vibrations in closed shell nuclei

A microscopic investigation of the transition form factor in the region of collective multipole excitations of stable and unstable nuclei

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