Wavelet signatures of $K$-splitting of the Isoscalar Giant Quadrupole Resonance in deformed nuclei from high-resolution (p,p${}^{\prime }$) scattering off ${}^{146,148,150}$Nd

Abstract

The phenomenon of fine structure of the Isoscalar Giant Quadrupole Resonance (ISGQR) has been studied with high energy-resolution proton inelastic scattering at iThemba LABS in the chain of stable even-mass Nd isotopes covering the transition from spherical to deformed ground states. A wavelet analysis of the background-subtracted spectra in the deformed 146,148,150Nd isotopes reveals characteristic scales in correspondence with scales obtained from a Skyrme RPA calculation using the SVmas10 parameterization. A semblance analysis shows that these scales arise from the energy shift between the main fragments of the K = 0, 1 and K = 2 components.

arXiv comment7 pages, 6 figures

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Cited by in corpus (12)

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• Candidate toroidal electric dipole mode in the spherical nucleus ${}^{58}$Ni
• Isoscalar giant monopole resonance in ${}^{24}$Mg and ${}^{28}$Si: Effect of coupling between the isoscalar monopole and quadrupole strength
• Studies of the Giant Dipole Resonance in ${}^{27}$Al, ${}^{40}$Ca, ${}^{56}$Fe, ${}^{58}$Ni and ${}^{208}$Pb with high energy-resolution inelastic proton scattering under 0${}^{\circ }$
• Damping of the isovector giant dipole resonance in ${}^{40,48}$Ca
• Gross, intermediate and fine structure of nuclear giant resonances: Evidence for doorway states
• Angela and the electric dipole response -- giant and pygmy, hot and cold, isoscalar and isovector
• Deformation dependence of the isovector giant dipole resonance: The neodymium isotopic chain revisited
• Fine structure of the isoscalar giant monopole resonance in ${}^{48}$Ca
• Recent applications of the subtracted second RPA method