TY - JOUR
T1 - Evolution of the IVGDR and its fine structure from doubly-magic 40 Ca to neutron-rich 48 Ca probed using (p, p 0 ) scattering
AU - Latif, M. B.
AU - Usman, I. T.
AU - Carter, J.
AU - Sideras-Haddad, E.
AU - Donaldson, L. M.
AU - Jingo, M.
AU - Kureba, C. O.
AU - Pellegri, L.
AU - Neveling, R.
AU - Smit, F. D.
AU - Nemulodi, F.
AU - von Neumann-Cosel, P.
AU - Ponomarev, Y. Yu
AU - Papka, P.
AU - Swartz, J. A.
AU - Cooper, G. R.J.
AU - Fujita, H.
AU - Papakonstantinou, P.
AU - Litvinova, E.
PY - 2019/3
Y1 - 2019/3
N2 - 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). For 40,48 Ca, these calculations consider all major processes (Landau damping, escape width, spreading width) contributing to the damping of the IVGDR.
AB - 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). For 40,48 Ca, these calculations consider all major processes (Landau damping, escape width, spreading width) contributing to the damping of the IVGDR.
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U2 - 10.5506/APhysPolB.50.461
DO - 10.5506/APhysPolB.50.461
M3 - Article
AN - SCOPUS:85063693180
VL - 50
SP - 461
EP - 468
JO - Acta Physica Polonica B
JF - Acta Physica Polonica B
SN - 0587-4254
IS - 3
ER -