Half-lives and branching ratios of some T = 1/2 nuclei

Precision half-life measurements and branching ratio determinations have been carried out for some T = 1/2 mirror nuclei. The following results have been obtained for the half-life and for the branching ratios: /sup 13/N (597.9 +- 0.6 s), /sup 15/O (122.23 +- 0.23 s), /sup 17/F (64.31 +- 0.09 s), /sup 21/Na ((95.8 +- 0.2) %), /sup 23/Mg (11.317 +- 0.011 s, (92.2 +- 0.2) %), /sup 25/Al ((99.16 +- 0.04) %), /sup 27/Si ((99.812 +- 0.010) %), /sup 29/P ((98.11 +- 0.30) %), /sup 31/S (2.543 +- 0.008 s, (98.89 +- 0.20) %), /sup 33/Cl (2.507 +- 0.008 s), /sup 35/Ar (1.774 +- 0.003 s, (98.0 +- 0.2) %), /sup 37/K (1.223 +- 0.008 s, (97.8 +- 0.2) %), /sup 39/Ca (0.8594 +- 0.0016 s, > 99.72%).