29 October 2018 to 2 November 2018
Protea Hotel Fire & Ice
Africa/Johannesburg timezone
Registration closes on 17 October

Investigating the candidate 5-alpha cluster state in 20Ne at Ex = 22.5 MeV with the 22Ne(p,t)20Ne reaction

Not scheduled
15m
Protea Hotel Fire & Ice

Protea Hotel Fire & Ice

64 New Church Street, Tamboerskloof Cape Town 8001
Poster

Speakers

Dr Iyabo Usman (Wits) Ms Lerato Baloyi (University of the Witwatersrand)

Description

The study of alpha-cluster in light nuclei have been well documented with experimental evidence. In the recent experiment performed at iThemba LABS using (p,t) reaction on 22Ne with the K600 magnetic spectrometer, a tentative candidate for 5-alpha cluster state at 22.5 MeV, which is situated at 3.3 MeV above the 5-alpha break-up threshold was found. However, this state could not be accounted for by theoretical shell-model calculations and angular distribution data taken at forward angles including zero degrees. In the present project, (p,t) reaction on 22Ne has been carried out at zero degrees using the K600 magnetic spectrometer at iThemba LABS in order to confirm the existence of this state. A proton beam with an energy of 80 MeV from the Separated Sector Cyclotron (SSC) facility impinged on a 22Ne gas target at lab angles of zero-dergee was considered. Preliminary results of these experiments will be discussed.

Primary author

Dr Iyabo Usman (Wits)

Co-authors

Cobus Swartz (iThemba LABS) Retief Neveling (iThemba LABS) John Carter (School of Physics, Wits University) Paul Papka (Stellenbosch University) Ricky Smit (iThemba LABS) Lindsay Donaldson (University of the Witwatersrand) Luna Pellegri (University of the Witwatersrand and iThemba LABS) G.F. Steyn ( iThemba LABS) Smarajit Triambak (University of Western Cape) Prof. Hans Otto Fynbo (Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark) Prof. O.S Kirsebom (Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark) Ms Lerato Baloyi (University of the Witwatersrand)

Presentation Materials

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