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Triaxiality near the $^{110}$Ru ground state from Coulomb excitation

Abstract : A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich $^{110}$Ru (t$_{1/2}$= 12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.
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Submitted on : Tuesday, June 13, 2017 - 4:32:46 PM
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D. Doherty, J. Allmond, R. Janssens, W. Korten, S. Zhu, et al.. Triaxiality near the $^{110}$Ru ground state from Coulomb excitation. Physics Letters B, Elsevier, 2017, 766, pp.334 - 338. ⟨10.1016/j.physletb.2017.01.031⟩. ⟨cea-01538529⟩



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