from 28 June 2015 to 3 July 2015 (Africa/Johannesburg)
Africa/Johannesburg timezone
SAIP2015 Proceeding published on 17 July 2016
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Fine structure of the isovector Giant Dipole Resonance in neutron-rich calcium isotopes using the (p,p') reaction at 200 MeV

Presented by Mr. Mouftahou LATIF on 3 Jul 2015 from 11:10 to 11:30
Type: Oral Presentation
Session: NPRP
Track: Track B - Nuclear, Particle and Radiation Physics

Abstract

Proton inelastic-scattering experiments have been carried out on the neutron-rich isotopes of calcium, 42,44,48Ca at zero-degrees using the high-energy resolution K600 Magnetic Spectrometer of iThemba LABS with a view to investigating the fine structure in the region of the Isovector Giant Dipole Resonance (IVGDR). Excellent energy resolutions were achieved with ∆E(FWHM)≈ 30 KeV for 44Ca and ∆E(FWHM)≈ 40 KeV for 42,48Ca leading to clear observation of fine structure thus allowing for an understanding of the damping of the resonance by comparison with state-of-the-art microscopic theoretical calculations. Double differential cross-sections have been extracted from the data obtained for each of the isotopes. Equivalent photo-absorption cross-sections were obtained from the measured data using virtual-photon production rates which agree well with those photo-absorption cross-sections already reported in the literature. In addition, preliminary results of the extracted characteristic energy scales are presented and future prospects are discussed.

Award

Yes

Level

PhD

Supervisor

Iyabo Usman (Iyabo.Usman@wits.ac.za

Paper

No

Permission

No

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