Some features of odd Au nuclei revealed by half-life measurements

V. Berg (1) , C. Bourgeois (1) , R. Foucher (1)

1 IPNO - Institut de Physique Nucléaire d'Orsay

The half-life (1.2 ± 0.1 ns) of the 789.9 keV 9/2- level in 193Au is measured. The retardation of the deexciting M 1 and E 2 transitions suggests that this 9/2- state, as well as those found in 187, 189, 191 gold nuclei, issues from the h9/2 orbit. The average shape of the Au nuclei in these states and of their even Pt cores is interpreted with the particle + asymmetric rotor model.

Mots clés: nuclear energy level lifetimes; nuclear energy levels; nuclear shape; nuclei with 150

Domaines: Articles anciens; Physique Nucléaire Expérimentale [nucl-ex]

V. Berg, C. Bourgeois, R. Foucher. Some features of odd Au nuclei revealed by half-life measurements. Journal de Physique, 1975, 36 (7-8), pp.613-616. ⟨10.1051/jphys:01975003607-8061300⟩. ⟨jpa-00208293⟩