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Wavelet signatures of K-splitting of the Isoscalar Giant Quadrupole Resonance in deformed nuclei from high-resolution (p,p′) scattering off 146, 148, 150Nd
oleh: C.O. Kureba, Z. Buthelezi, J. Carter, G.R.J. Cooper, R.W. Fearick, S.V. Förtsch, M. Jingo, W. Kleinig, A. Krugmann, A.M. Krumbolz, J. Kvasil, J. Mabiala, J.P. Mira, V.O. Nesterenko, P. von Neumann-Cosel, R. Neveling, P. Papka, P.-G. Reinhard, A. Richter, E. Sideras-Haddad, F.D. Smit, G.F. Steyn, J.A. Swartz, A. Tamii, I.T. Usman
Format: | Article |
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Diterbitkan: | Elsevier 2018-04-01 |
Deskripsi
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. Keywords: 146, 148, 150Nd(p,p′), ISGQR K-splitting, Wavelet analysis, Characteristic energy scales, Semblance analysis