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

Autor: Kureba, C. O., Buthelezi, Z., Carter, J., Cooper, G. R. J., Fearick, R. W., Förtsch, S. V., Jingo, M., Kleinig, W., Krugmann, A., Krumbolz, A. M., Kvasil, J., Mabiala, J., Mira, J. P., Nesterenko, V. O., von Neumann-Cosel, P., Neveling, R., Papka, P., Reinhard, P. -G., Richter, A., Sideras-Haddad, E., Smit, F. D., Steyn, G. F., Swartz, J. A., Tamii, A., Usman, I. T.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Lett. B 779, 269 (2018)
Druh dokumentu: Working Paper
DOI: 10.1016/j.physletb.2018.02.013
Popis: 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.
Comment: 7 pages, 6 figures
Databáze: arXiv