학술논문
Triaxiality near the 110Ru ground state from Coulomb excitation
Document Type
article
Author
Doherty, DT; Allmond, JM; Janssens, RVF; Korten, W; Zhu, S; Zielińska, M; Radford, DC; Ayangeakaa, AD; Bucher, B; Batchelder, JC; Beausang, CW; Campbell, C; Carpenter, MP; Cline, D; Crawford, HL; David, HM; Delaroche, JP; Dickerson, C; Fallon, P; Galindo-Uribarri, A; Kondev, FG; Harker, JL; Hayes, AB; Hendricks, M; Humby, P; Girod, M; Gross, CJ; Klintefjord, M; Kolos, K; Lane, GJ; Lauritsen, T; Libert, J; Macchiavelli, AO; Napiorkowski, PJ; Padilla-Rodal, E; Pardo, RC; Reviol, W; Sarantites, DG; Savard, G; Seweryniak, D; Srebrny, J; Varner, R; Vondrasek, R; Wiens, A; Wilson, E; Wood, JL; Wu, CY
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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 110Ru (t1/2=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.