28 June 2015 to 3 July 2015
Africa/Johannesburg timezone
SAIP2015 Proceeding published on 17 July 2016

A precise measurement of the &frac12<sup>+</sup> to &frac12<sup>+</sup> ft value in <sup>19</sup>Ne beta decay

1 Jul 2015, 16:10
1h 50m
Board: B.264
Poster Presentation Track B - Nuclear, Particle and Radiation Physics Poster2

Speaker

Ms Phumzile Mabika (University of the Western Cape)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

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 Standard Model (SM) of particle physics successfully describes the fundamental particles as well as their interactions. Despite this success, there is reason to believe that the SM is incomplete as many of the ingredients in the model are taken directly from the experimental evidence alone. For example, SUL(2) x U(1)EM standard electroweak theory allows only left-handed weak currents. However, several theoretical extensions to the model allows the change of massive exotic particles of both helicities, beyond the established V-A structure of weak interactions.

One way to look for physics beyond the SM is by low energy experiments that tests the symmetries in the model The beta decay of 19Ne is highly sensitive to right-handed (V+A) type of interactions. In this project we present data from a previous 19Ne beta decay experiment to obtain its ft value with high accuracy and precision. The experiment was performed at TRIUMF (Canada’s National Laboratory for Particle and Nuclear Physics), using an array of HPGe detectors and plastic scintillators called the 8π array and SCEPTAR respectively. Together with the beta asymmetry parameter for 19Ne beta decay [1], the measured ft value can be used to place bounds on predicted right-handed weak interactions.

[1] F.P Calaprice et al., Phys. Rev. Lett, 38, 1566 (1975)

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

MSc

Main supervisor (name and email)<br>and his / her institution

Prof Smarajit Triambark, smarajit@gmail.com, University of the Western Cape

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Primary author

Ms Phumzile Mabika (University of the Western Cape)

Co-author

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