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Open Access Publications from the University of California

Vibrational and rotational sequences in101Mo and 103,4Ru studied via multinucleon transfer reactions

  • Author(s): Regan, PH
  • Wheldon, C
  • Yamamoto, AD
  • Valiente-DOBÓN, JJ
  • Cline, D
  • Wu, CY
  • Macchiavelli, AO
  • Xu, FR
  • Smith, JF
  • Andgren, K
  • Chakrawarthy, RS
  • Cromaz, M
  • Fallon, P
  • Freeman, SJ
  • Gorgen, A
  • Hayes, A
  • Hua, H
  • Langdown, SD
  • Lee, IY
  • Pearson, CJ
  • Podolyák, Z
  • Teng, R
  • et al.

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The near-yrast states of 42101Mo59 and 44103,4Ru59,60 have been studied following their population via heavy-ion multinucleon transfer reactions between a 136Xe beam and a thin, self-supporting 100Mo target. The ground state sequence in 104Ru 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-Ω h11/2 neutron orbitals. The effect of the decoupled h11/2 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 h11/2 orbital in these nuclei.

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