A new and independent determination of the Gamow-Teller branching ratio in the beta-decay of 21Na is reported. The value obtained of 5.13 +- 0.43 % is in agreement with the currently adopted value and the most recent measurement. In contrast to previous experiments, the present method was based on the counting of the parent 21Na ions and the resulting 351 keV gamma-rays without coincident beta-particle detection.
Cite
@article{arxiv.0906.5571,
title = {The beta-gamma decay of 21Na},
author = {N. L. Achouri and J. -C. Angélique and G. Ban and B. Bastin and B. Blank and S. Dean and P. Dendooven and J. Giovinazzo and S. Grévy and K. Jungmann and B. Laurent and E. Liénard and O. Naviliat-Cuncic and N. Orr and A. Rogachevskiy and M. Sohani and E. Traykov and H. Wilschut},
journal= {arXiv preprint arXiv:0906.5571},
year = {2014}
}
Comments
12 pages, 10 figures Published online in Journal of Physics G: Nuclear and Particle Physics