Al-Garni, S. D.S. D.Al-GarniRegan, P. H.P. H.ReganWalker, P. M.P. M.WalkerRoeckl, E.E.RoecklKirchner, R.R.KirchnerXu, F. R.F. R.XuBatist, L.L.BatistBlazhev, A.A.BlazhevBorcea, R.R.BorceaCullen, D. M.D. M.CullenDoring, J.J.DoringEl-Masri, H. M.H. M.El-MasriNarro, J. G.J. G.NarroGrawe, H.H.GraweLa Commara, M.M.La CommaraMazzoechi, C.C.MazzoechiMukha, I.I.MukhaPearson, C. J.C. J.PearsonPlettner, C.C.PlettnerSchmidt, K.K.SchmidtSchmidt-Ott, W. D.W. D.Schmidt-OttShimbara, Y.Y.ShimbaraWheldon, C.C.WheldonWood, R.R.WoodWooding, Stephen P.Stephen P.Wooding2018-11-072018-11-072004https://resolver.sub.uni-goettingen.de/purl?gro-2/48925Nuclei in the A similar to 180 region have been populated and investigated in a series of multinucleon transfer and deep-inelastic reactions involving an 11.4 MeV per nucleon Xe-136 beam produced by the GSI UNILAC accelerator, impinging on a selection of tantalum and tungsten targets. The reaction products were released from a thermal ion source and subsequently mass selected using the GSI on-line mass separator. The unexpectedly high yield of gamma rays associated with the decay of the well established K-pi=37/2(-),t(1/2)=51.4 min isomer in Hf-177(72) and anomalous half-life characteristics associated with this decay lead to these data being interpreted as the beta(-) decay of a high-K isomer in the mother nucleus, Lu-177. By comparing the experimental findings with the predictions obtained from multi-quasiparticle blocked-BCS-Nilsson calculations, the proposed decay is suggested to be from a K-pi=39/2(-) five-quasiparticle state in Lu-177(71). A half-life of 7 +/- 2 min is determined for this beta-decay path which is estimated to have an excitation energy of approximate to3.9 MeV above the Lu-177 ground state.journal_article10.1103/PhysRevC.69.024320000220491300030