Speaker
Ms
Chané Simone Moodley
(University of the Witwatersrand)
Description
In the last decade, through high energy-resolution proton inelastic-scattering experiments, it was revealed that giant resonances carry fine structure as a signature of damping mechanisms. Now, for the first time, such high energy-resolution measurements can be made with intermediate energy α-particle inelastic-scattering at zero-degrees, where preferentially the Isoscalar Giant Monopole Resonance (ISGMR) is excited. These experiments have been performed using the Separated Sector Cyclotron (SSC) at the iThemba LABS and the K600 magnetic spectrometer for a range of nuclei including 24Mg, 58Ni and 90Zr. In order to isolate the electric monopole response, background from other multipoles can be subtracted including the Isovector Giant Dipole Resonance (IVGDR) and the Isoscalar Giant Quadrupole Resonance (ISGQR) using energy spectra also at zero-degrees obtained from proton inelastic-scattering. Following this multipole decomposition analysis, J π = 0+ level densities can also be extracted. Preliminary results will be presented.
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
MSc
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
Yes
Main supervisor (name and email)<br>and his / her institution
Dr Iyabo Usman
Iyabo.Usman@wits.ac.za
University of the Witwatersrand
Primary author
Ms
Chané Simone Moodley
(University of the Witwatersrand)
Co-authors
Prof.
ELIAS SIDERAS-HADDAD
(University of the Witwatersrand)
Dr
Frederick David Smit
(iThemba LABS)
Dr
Iyabo Usman
(University of the Witwatersrand, Johannesburg.)
Prof.
John Carter
(University of the Witwatersrand)
Mr
Kevin Li
(Stellenbosch University, iThemba Labs)
Dr
Lindsay Donaldson
(iThemba Laboratory for Accelerator Based Sciences)
Dr
Luna Pellegri
(University of Witwatersrand and iThemba LABs)
Dr
Paul Papka
(Stellenbosch University)
Dr
Retief Neveling
(iThemba LABS)
