4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=10&confId=86">The Proceedings of SAIP2016</a> published on 24 December 2017

Coulomb excitation reorientation effect of the first 2<sup>+</sup> state at 4.439 MeV in <sup>12</sup>C

5 Jul 2016, 11:30
20m
LT3 (Kramer Law building)

LT3

Kramer Law building

UCT Middle Campus Cape Town
Oral Presentation Track B - Nuclear, Particle and Radiation Physics Nuclear, Particle and Radiation Physics (1)

Speaker

Dr Kumar Raju Mukhi (University of the Western Cape)

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No

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

The reorientation effect (RE) plays a major role in Coulomb excitation theory as it facilitates information about the shape and degrees of quadrupole collectivity of even-even nuclei via measuring the diagonal matrix element <21+||E2||21+> of the first 2+ state. This in turn proportional to the spectroscopic quadrupole moment [QS(21+)] which provides direct information about the shape with its sign precisely. A safe Coulomb excitation reorientation effect measurement was performed at TRIUMF accelerator facility to determine the sign and magnitude of QS(21+) in 12C. The first 2+ state at 4439 keV in 12C was Coulomb excited through inelastic scattering of 12C beam at ~ 4.97 MeV/u energy impinging on a 1 mg/cm2 thick 194Pt target. The de-excited γ-rays were detected with highly-efficient and segmented TIGRESS clover detector array and the scattered particles were detected in coincidence with γ-rays using annular double sided silicon CD type detector (S2) which contains 24 rings and 32 sectors. The data have been analysed employing particle-γ coincidence, energy sharing and timing conditions. The Doppler corrected sum γ-ray spectrum shows the evidence for 4439 keV in 12C. The experimental results and the details about determination of QS(21+) will be presented during conference.

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Primary author

Dr Kumar Raju Mukhi (University of the Western Cape)

Co-authors

, UWC and TRIUMF Colloboration (University of the Western Cape & TRIUMF, Canada) Dr Nico Orce (University of the Western Cape)

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