In-beam gamma-ray spectroscopy of the N=85 isotones W-159 and Re-160

WOS: 000296522000001Excited states have been identified in the isotones W-159(74) and Re-160(75), which were produced in fusion-evaporation reactions of a beam of 310-MeV Ni-58 ions with an isotopically enriched Cd-106 target. The strongest gamma-ray transitions in W-159 and Re-160 are interpreted as continuing the regular sequence of states identified in lighter N = 85 isotones that are built upon 9/2(-) and 10(+) states, respectively. The half-life of Hf-155, the beta-decaying daughter of the a decay of W-159, was measured with improved precision to be 840 +/- 30 ms.UK Science and Technology Facilities Council; EU [RII3-CT-2004-506065 (EURONS)]; Academy of Finland [213503, 209430, 111965]; Science and Technology Facilities Council [ST/J000108/1, ST/G008620/1, EP/C015371/1, ST/J000094/1, EP/C015266/1, ST/G008671/1]The authors thank the technical staff at the University of Jyvaskyla for their excellent support and Paul Morrall for making the targets. This work has been supported by the UK Science and Technology Facilities Council; by the EU 6th Framework Programme "Integrating Infrastructure Initiative Transnational Access," Contract No. RII3-CT-2004-506065 (EURONS); and by the Academy of Finland under the Finnish Centre of Excellence Programme 2006-2011 (Nuclear and Accelerator Based Physics Programme at JYFL), Contract No. 213503. C. S. (Contract No. 209430) and P. T. G. (Contract No. 111965) acknowledge the support of the Academy of Finland. We thank the GAMMAPOOL European Spectroscopy Resource for the loan of germanium detectors for JUROGAM, and we thank the French CNRS/IN2P3 for the use of the TNT2 digital electronics