Isoscalar monopole and dipole strength between 10 and 20 MeV in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Mg</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>24</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>from inelastic<i>α</i>scattering at and around 0°

Lu, H.; Brandenburg, S.; Deleo, R; Harakeh, Mohsen; Poelhekken, T.D.; Vanderwoude, A

doi:10.1103/physrevc.33.1116

Cited by 30 publications

(23 citation statements)

References 24 publications

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“…7. The sum of these components in the energy region [15][16][17][18][19][20][21][22][23][24][25] MeV is in reasonable agreement with the data. Again, comparison of data with the spherical and deformed ground-state microscopic calculations clearly indicates that ISGQR strength fragmentation in 24 Mg corresponds to a prolate-deformed ground state.…”

Section: Discussionsupporting

confidence: 79%

“…These are understood in terms of K-splitting: microscopic calculations based on quasiparticle random-phase approximation (QRPA) [11], for example, predict K-splitting of the multipole strength even in light deformed nuclei such as 24 Mg [12,13]. Identification of full giant-resonance strengths in the lighter-mass nuclei (A < 60) has generally been a chal-lenge due to fragmentation of the strength [14][15][16][17][18][19][20][21][22], significant overlap of giant resonance strengths for L ≤2, uncertainties in the extraction of the strength distributions, and overlap of the multipole strength with other direct processes (knock-out/quasi-free processes, for example). The light nuclei, in particular the deformed ones such as 24 Mg and 28 Si, provide a vital testing ground for the aforementioned QRPA and deformed Hartree-FockBogoliubov (HFB) calculations [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Deformation effects on isoscalar giant resonances inMg24

et al. 2016

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Strength distributions for isoscalar giant resonances with multipolarity L ≤2 have been determined in 24 Mg from "instrumental background-free" inelastic scattering of 386-MeV α particles at extremely forward angles, including 0• . The isoscalar E0, E1, and E2 strengths are observed to be 57±7%, 111.1 +10.9 −7.2 %, and 148.6±7.3%, respectively, of their energy-weighted sum rules in the excitation energy range of 6 to 35 MeV. The isoscalar giant monopole (ISGMR) and quadrupole (ISGQR) resonances exhibit a prominent K-splitting which is consistent with microscopic theory for a prolate-deformed ground state of 24 Mg. For the ISGQR it is due to splitting of the three K components, whereas for the ISGMR it is due to its coupling to the K=0 component of the ISGQR. Deformation effects on the isoscalar giant dipole resonance are less pronounced, however.

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Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Deformation effects on isoscalar giant resonances inMg24

et al. 2016

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“…These fits include data on "Mg from ref. 25), in which case a strength of about 100% of the monopole sum rule was found to be exhausted. In the analysis of breathing mode data in ref.…”

Section: Fits To Experimental Datamentioning

confidence: 97%

Nuclear matter incompressibility from a semi-empirical analysis of breathing-mode energies

et al. 1989

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“…The isoscalar giant monopole resonance (GMR) is of particular importance because its energy can be directly related to the nuclear compressibility, and from this, the compressibility of nuclear matter (K NM ) can be obtained. Initial studies of the GMR in 24 Mg with 120-MeV α [1] and 156-MeV 6 Li [2] inelastic scattering identified monopole strength over a limited energy range (10 < E x < 23 MeV). In 1999, using inelastic scattering of 240-MeV α particles [3], E0 strength was identified extending up to E x = 40 MeV.…”

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confidence: 99%