Beta-decay study of $T_z=-2$ proton-rich nucleus $^{20}$Mg
Abstract
The decay of the drip-line nucleus Mg gives important information on resonances in Na, which are relevant for the astrophysical -process. A detailed decay spectroscopic study of Mg was performed by a continuous-implantation method. A detection system was specially developed for charged-particle decay studies, giving improved spectroscopic information including the half-life of Mg, the excitation energies, the branching ratios, and the log values for the states in Na populated in the decay of Mg. A new proton branch was observed and the corresponding excited state in Na was proposed. The large isospin asymmetry for the mirror decays of Mg and O was reproduced, as well. However, no conclusive conclusion can be draw about the astrophysically interesting 2645~keV resonance in Na due to the limited statistics.
Cite
@article{arxiv.1610.03003,
title = {Beta-decay study of $T_z=-2$ proton-rich nucleus $^{20}$Mg},
author = {L. J. Sun and X. X. Xu and C. J. Lin and J. S. Wang and D. Q. Fang and Z. H. Li and Y. T. Wang and J. Li and L. Yang and N. R. Ma and K. Wang and H. L. Zang and H. W. Wang and C. Li and C. Z. Shi and M. W. Nie and X. F. Li and H. Li and J. B. Ma and P. Ma and S. L. Jin and M. R. Huang and Z. Bai and J. G. Wang and F. Yang and H. M. Jia and H. Q. Zhang and Z. H. Liu and P. F. Bao and D. X. Wang and Y. G. Ma and Y. Y. Yang and Y. J. Zhou and W. H. Ma and J. Chen},
journal= {arXiv preprint arXiv:1610.03003},
year = {2017}
}