1. EVOLUTION OF THE IVGDR AND ITS FINE STRUCTURE FROM DOUBLY-MAGIC 40Ca TO NEUTRON-RICH 48Ca PROBED USING (p,p') SCATTERING.
- Author
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LATIF, M. B., USMAN, I. T., CARTER, J., SIDERAS-HADDAD, E., DONALDSON, L. M., JINGO, M., KUREBA, C. O., PELLEGRI, L., NEVELING, R., SMIT, F. D., NEMULODI, F., VON NEUMANN-COSEL, P., PONOMAREV, Y. YU., PAPKA, P., SWARTZ, J. A., COOPER, G. R. J., FUJITA, H., PAPAKONSTANTINOU, P., and LITVINOVA, E.
- Subjects
DISCRETE wavelet transforms ,LANDAU damping ,INELASTIC scattering ,MAGNETIC spectrometer ,PROTON scattering - Abstract
Experiments investigating the fine structure of the Isovector Giant Dipole Resonances (IVGDR) have been carried out on target nuclei
40,42,44,48 Ca with 200 MeV proton inelastic scattering reactions using the high-energy resolution capability and the zero-degree set-up at the K600 magnetic spectrometer of the iThemba LABS, Cape Town, South Africa. Quasi-free scattering background contributions in the experimental data have been removed by applying a novel method of Discrete Wavelet Transform (DWT) analysis. Energy scales extracted are compared with the state-of-the-art theoretical calculations within the framework of the Quasiparticle- RPA and Relativistic Quasiparticle Time Blocking Approximation (RQTBA). For40,48 Ca, these calculations consider all major processes (Landau damping, escape width, spreading width) contributing to the damping of the IVGDR. [ABSTRACT FROM AUTHOR]- Published
- 2019
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