Abstract.
The 107,109Rh nuclei have been produced as fission fragments following the fusion reaction 28Si +176Yb at 145 MeV bombarding energy and studied with the Eurogam2 array. In both nuclei three new rotational bands with the odd proton occupying the πg9/2, πp1/2 and π(g7/2/d5/2) sub-shells have been observed. In 107Rh, two other bands involving strong M1 transitions have been identified at excitation energy larger than 2 MeV. They can be interpreted in terms of three quasiparticle excitations. In addition new structures consisting of four transitions, built on states located at low excitation energy (680 keV in 107Rh and 642 keV in 109Rh), point out the importance of triaxial deformation in these two isotopes.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 1 September 1999
Rights and permissions
About this article
Cite this article
Venkova, T., Porquet, MG., Deloncle, I. et al. High-spin structure of the neutron-rich 107,109 45Rh isotopes: the role of triaxiality . EPJ A 6, 405–413 (1999). https://doi.org/10.1007/s100500050363
Issue Date:
DOI: https://doi.org/10.1007/s100500050363