Low-spin collective behavior in the transitional nuclei Mo86,88

K. Andgren et al.
Phys. Rev. C 76, 014307 – Published 16 July 2007

Abstract

Low-spin structures in Mo86,88 were populated using the Ni58(Ar36, xαyp) heavy-ion fusion-evaporation reaction at a beam energy of 111 MeV. Charged particles and γ rays were emitted in the reactions and detected by the DIAMANT CsI ball and the EXOGAM Ge array, respectively. In addition to the previously reported low-to-medium spin states in these nuclei, new low-spin structures were observed. Angular correlation and linear polarization measurements were performed in order to unambiguously determine the spins and parities of intensely populated states in Mo88. Quasiparticle Random Phase Approximation (QRPA) calculations were performed for the first and second excited 2+ states in Mo86 and Mo88. The results are in qualitative agreement with the experimental results, supporting a collective interpretation of the low-spin states for these transitional nuclei.

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  • Received 15 March 2007

DOI:https://doi.org/10.1103/PhysRevC.76.014307

©2007 American Physical Society

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Vol. 76, Iss. 1 — July 2007

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