Triaxiality near the ¹¹⁰Ru ground state from Coulomb excitation

Doherty, D. T.Allmond, J. M.Janssens, R. V. F.Korten, W.Zhu, S.Zielińska, M.Radford, D. C.Ayangeakaa, A. D.Bucher, B.Batchelder, J. C.Beausang, C.W.Campbell, C.Carpenter, M. P.Cline, D.Crawford, H. L.David, H.M.Delaroche, J. P.Dickerson, C.Fallon, P.Galindo-Uribarri, A.Kondev, F. G.Harker, J. L.Hayes, A. B.Hendricks, M.Humby, P.Girod, M.Gross, C. J.Klintefjord, M.Kolos, K.Lane, GregoryLauritsen, T.Libert, J.Macchiavelli, A. O.Napiorkowski, P. J.Padilla-Rodal, E.Pardo, R. C.Reviol, W.Sarantites, D. G.Savard, G.Seweryniak, D.Srebrny, J.Varner, R.Vondrasek, R.Wiens, A.Wilson, E.Wood, J.L.Wu, C. Y.2017-02-172017-02-170370-2693http://hdl.handle.net/1885/112465A 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.This work was funded by the U.S. Department of Energy, Of- fice of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357 (ANL), No. DE-AC05-00OR22725 (ORNL), DESC0014442 (WU), No. DE-AC02-05CH11231 (LBNL, GRETINA), No. DE-AC52-07NA27344 (LLNL), No. DE-FG02-05ER41379 (Richmond) and by the US DOE National Nuclear Security Administration under grant number No. DE-NA0001801 (Richmond). EP-R acknowledges the financial support of DGAPA-UNAM under the PASPA program. The project has received partial funding from the National Science Centre of Poland under the Harmonia Programme grant No. DEC 2013/10/M/ST2/00427.application/pdf© 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.Triaxiality near the ¹¹⁰Ru ground state from Coulomb excitation201710.1016/j.physletb.2017.01.031