Speaker
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Abstract content <br> (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 study of 22Na beta decay offers an opportunity to test the Standard Model via measurements of the β-γ angular correlation. A previous measurement of this correlation yielded a non-zero value, indicating the need for a higher-order correlation to the decay, beyond the allowed V-A approximation. On assuming the Conserved Vector Current (CVC) hypothesis for weak interactions and using the magnetic dipole M1 width of the analog 21+ state in 22Na, one obtains an unexpectedly large "second-class" form factor that is in disagreement with the Standard Model prediction
This talk describes an analysis of data obtained from a prior 21Ne(p,γ) experiment to obtain the M1 width of the 21+ state of interest in 22Na. We aim to use the M1 width and an independent measurement of the β-γ angular correlation to obtain a higher order Standard-Model-allowed weak magnetism term, in an attempt to explain the observed discrepancy mentioned above. I will also describe some Monte Carlo simulations performed to extract E2/M1 mixing ratio from these data.
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
Yes
Main supervisor (name and email)<br>and his / her institution
Prof Smarajit Triambak
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
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
MSc
