Vibrational and rotational sequences in Mo-101 and Ru-103,Ru-4 studied via multinucleon transfer reactions

QC 20111012
The near-yrast states of Mo-101(42)59 and Ru-103,4(44)59,60 have been studied following their population via heavy-ion multinucleon transfer reactions between a Xe-136 beam and a thin, self-supporting Mo-100 target. The ground state sequence in Ru-104 can be understood as demonstrating a simple evolution from a quasi-vibrational structure at lower spins to statically deformed, quasi-rotational excitation involving the population of a pair of low-Omega h(11/2) neutron orbitals. The effect of the decoupled h(11/2) orbital on this vibration-to-rotational evolution is demonstrated by an extension of the "E-GOS" prescription to include odd-A nuclei. The experimental results are also compared with self-consistent Total Routhian Surface calculations which also highlight the polarising role of the highly aligned neutron h(11/2) orbital in these nuclei.

By the author/editor: Regan, P H; Wheldon, C; Yamamoto, A D; Valiente-Dobon, ...; Cline, D; Wu, C Y; show more...; Macchiavelli, A ...; Xu, F R; Smith, J F; Andgren, Karin; Chakrawarthy, R ...; Cromaz, M; Fallon, P; Freeman, S J; Gorgen, A; Hayes, A; Hua, H; Langdown, S D; Lee, I Y; Pearson, C J; Podolyak, Z; Teng, R; show less...

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