4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
Paper Review: Initial screening in progress
Home > Timetable > Session details > Contribution details
PDF | XML | iCal

Disentangling second-order effects in Coulomb Excitation Theory: (Reorientation and Nuclear Polarizability Effects)

Presented by Mr. Elijah AKAKPO on 5 Jul 2016 from 16:10 to 18:00
Type: Poster Presentation
Track: Track B - Nuclear, Particle and Radiation Physics
Board #: B.179

Abstract

We aim at disentangling the second order-effects in Coulomb Excitation (Reorientation Effect and Nuclear Polarizability). A safe coulomb excitation experiment was performed to study the nuclear polarizability and reorientation effects through measuring the spectroscopic quadrupole moment Q<sub>s</sub> for the first 2<sub>1</sub><sup>+</sup> in <sup>40</sup> Ar. A beam of <sup>40</sup>Ar<sup>6+</sup> at 134 MeV with typical currents of ≈ 0.5 to 1 nA was provided by the Cyclotron accelerator facility at iThemba Labs, which was Coulomb excited on a ≈ 1 mg ⁄ cm<sup>2</sup> <sup>194</sup>Pt target. A double sided CD-type S3 silicon detector was used to detect particles at forward angels in coincidence with &gamma;-rays. The dexcited &gamma;-rays from the residual nuclei were detected using the AFRODITE array (5 clover detectors at 90° and 3 at 135°). A semi-classical couple channel Coulomb Excitation code, GOSIA, will be utilized to extract the matrix element for the Q<sub>s</sub> (2<sup>+</sup>) from the experimental data.

Award

Yes

Level

MSc

Supervisor

Prof. Nico Orce jnorce@uwc.ac.za

Paper

No

Permission

Yes

Place

Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room:


Primary authors

More