Triaxiality near the 110Ru ground state from Coulomb excitation

  • D. T. Doherty
  • , J. M. Allmond
  • , R. V.F. Janssens
  • , W. Korten
  • , S. Zhu
  • , M. Zielińska
  • , D. C. Radford
  • , A. D. Ayangeakaa
  • , B. Bucher
  • , J. C. Batchelder
  • , C. W. Beausang
  • , C. Campbell
  • , M. P. Carpenter
  • , D. Cline
  • , H. L. Crawford
  • , H. M. David
  • , J. P. Delaroche
  • , C. Dickerson
  • , P. Fallon
  • , A. Galindo-Uribarri
  • F. G. Kondev, J. L. Harker, A. B. Hayes, M. Hendricks, P. Humby, M. Girod, C. J. Gross, M. Klintefjord, K. Kolos, G. J. Lane, T. Lauritsen, J. Libert, A. O. Macchiavelli, P. J. Napiorkowski, E. Padilla-Rodal, R. C. Pardo, W. Reviol, D. G. Sarantites, G. Savard, D. Seweryniak, J. Srebrny, R. Varner, R. Vondrasek, A. Wiens, E. Wilson, J. L. Wood, C. Y. Wu

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

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.

Original languageEnglish
Pages (from-to)334-338
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume766
DOIs
StatePublished - Mar 10 2017

Funding

This work was funded by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357 (ANL), No. DE-AC05-00OR22725 (ORNL), DE-SC0014442 (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. This research used resources of ANL's ATLAS facility, which is a DOE Office of Science User Facility.

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