Abstract.
The ground-state band in 110Mo has been observed for the first time. The band, comprising six levels, has been populated in the spontaneous fission of 248Cm and studied by means of prompt \(\gamma\)-ray spectroscopy using the EUROGAM2 array. The ratio \(E_{\rm exc}(4^ + )/ E_{\rm exc}(2^ + )\) suggests that the deformation of 110Mo is smaller than that in 108Mo but may stabilize at higher neutron number, where an oblate shape is expected. The new data suggests that the deformation of Sr and Zr isotopes decreases above neutron number N = 64.
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Communicated by D. Schwalm
Received: 23 February 2004, Published online: 2 June 2004
PACS:
23.20.Lv \(\gamma\) transitions and level energies - 21.60.Cs Shell model - 25.85.Ca Spontaneous fission - 27.60. + j \(90 \leq A \leq 149\)
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Urban, W., Rzaca-Urban, T., Durell, J.L. et al. First observation of excited states in the 110Mo nucleus. Eur. Phys. J. A 20, 381–384 (2004). https://doi.org/10.1140/epja/i2004-10023-y
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DOI: https://doi.org/10.1140/epja/i2004-10023-y