Abstract
The high spin states of neutron-rich 103Nb, 107Tc and 109Tc nuclei in A∼110 region have been investigated by measuring prompt γ-γ-γ coincident measurements populated with the spontaneous fission of 252Cf with the Gammasphere detector array. In 103Nb, one-phonon K = 9/2 and two-phonon K = 13/2 γ-vibrational bands have been identified. In 107Tc and 109Tc, one-phonon K = 11/2 and two-phonon K = 15/2 γ-vibrational bands, in which the zero-phonon bands are based on K=7/2 excited states, have also been identified. The two-phonon bands are first observed in odd-Z nuclei. The characteristics for these band structures have been discussed.
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Zhu, S., Wang, J., Gu, L. et al. New multi-phonon gamma vibrational bands in A∼110 neutron-rich nuclei. Sci. China Phys. Mech. Astron. 54 (Suppl 1), 44–48 (2011). https://doi.org/10.1007/s11433-011-4417-7
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DOI: https://doi.org/10.1007/s11433-011-4417-7