Evolution of the IVGDR and its fine structure from doubly-magic                          40                         Ca to neutron-rich                          48                         Ca probed using (p, p                         0                         ) scattering

M. B. Latif; I. T. Usman; J. Carter; E. Sideras-Haddad; L. M. Donaldson; M. Jingo; C. O. Kureba; L. Pellegri; R. Neveling; F. D. Smit; F. Nemulodi; P. von Neumann-Cosel; Y. Yu Ponomarev; P. Papka; J. A. Swartz; G. R.J. Cooper; H. Fujita; P. Papakonstantinou; E. Litvinova

doi:10.5506/APhysPolB.50.461

Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering

M. B. Latif, I. T. Usman, J. Carter, E. Sideras-Haddad, L. M. Donaldson, M. Jingo, C. O. Kureba, L. Pellegri, R. Neveling, F. D. Smit, F. Nemulodi, P. von Neumann-Cosel, Y. Yu Ponomarev, P. Papka, J. A. Swartz, G. R.J. Cooper, H. Fujita, P. Papakonstantinou, E. Litvinova

Research output: Contribution to journal › Article

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). For ^40,48 Ca, these calculations consider all major processes (Landau damping, escape width, spreading width) contributing to the damping of the IVGDR.

Original language	English
Pages (from-to)	461-468
Number of pages	8
Journal	Acta Physica Polonica B
Volume	50
Issue number	3
DOIs	https://doi.org/10.5506/APhysPolB.50.461
Publication status	Published - Mar 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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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. Y., Papka, P., Swartz, J. A., Cooper, G. R. J., Fujita, H., Papakonstantinou, P., & Litvinova, E. (2019). Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering. Acta Physica Polonica B, 50(3), 461-468. https://doi.org/10.5506/APhysPolB.50.461

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. ; Litvinova, E. / Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering. In: Acta Physica Polonica B. 2019 ; Vol. 50, No. 3. pp. 461-468.

@article{955dd12fa77c45cfbb59d8ee23281430,

title = "Evolution of the IVGDR and its fine structure from doubly-magic 40 Ca to neutron-rich 48 Ca probed using (p, p 0 ) 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). For 40,48 Ca, these calculations consider all major processes (Landau damping, escape width, spreading width) contributing to the damping of the IVGDR. ",

author = "Latif, {M. B.} and Usman, {I. T.} and J. Carter and E. Sideras-Haddad and Donaldson, {L. M.} and M. Jingo and Kureba, {C. O.} and L. Pellegri and R. Neveling and Smit, {F. D.} and F. Nemulodi and {von Neumann-Cosel}, P. and Ponomarev, {Y. Yu} and P. Papka and Swartz, {J. A.} and Cooper, {G. R.J.} and H. Fujita and P. Papakonstantinou and E. Litvinova",

year = "2019",

month = mar,

doi = "10.5506/APhysPolB.50.461",

language = "English",

volume = "50",

pages = "461--468",

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Latif, MB, Usman, IT, Carter, J, Sideras-Haddad, E, Donaldson, LM, Jingo, M, Kureba, CO, Pellegri, L, Neveling, R, Smit, FD, Nemulodi, F, von Neumann-Cosel, P, Ponomarev, YY, Papka, P, Swartz, JA, Cooper, GRJ, Fujita, H, Papakonstantinou, P & Litvinova, E 2019, 'Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering', Acta Physica Polonica B, vol. 50, no. 3, pp. 461-468. https://doi.org/10.5506/APhysPolB.50.461

Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering. / 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.; Litvinova, E.

In: Acta Physica Polonica B, Vol. 50, No. 3, 03.2019, p. 461-468.

Research output: Contribution to journal › Article

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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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Latif MB, Usman IT, Carter J, Sideras-Haddad E, Donaldson LM, Jingo M et al. Evolution of the IVGDR and its fine structure from doubly-magic ⁴⁰ Ca to neutron-rich ⁴⁸ Ca probed using (p, p ⁰ ) scattering. Acta Physica Polonica B. 2019 Mar;50(3):461-468. https://doi.org/10.5506/APhysPolB.50.461