Phys.Rev. C 95, 024301 (2017)

B.Ding, Z.Liu, D.Seweryniak, P.J.Woods, H.L.Wang, J.Yang, H.L.Liu, C.N.Davids, M.P.Carpenter, T.Davinson, R.V.F.Janssens, R.D.Page, A.P.Robinson, J.Shergur, S.Sinha, S.Zhu, X.D.Tang, J.G.Wang, T.H.Huang, W.Q.Zhang, M.D.Sun, X.Y.Liu, H.Y.Lu

First identification of excited states in ¹¹⁷Ba using the recoil-β-delayed proton tagging technique

NUCLEAR REACTIONS ⁶⁴Zn(⁵⁸Ni, 3n2p), E=305 MeV; measured Eγ, Iγ, (delayed protons)γ-coin, recoil-βp decay tagging using fragment mass analyzer (FMA), and Gammasphere array at ATLAS-ANL facility. ¹¹⁷Ba; deduced high-spin levels, J, π, bands, alignments, Routhian energies, configurations. Comparison with cranked shell-model calculations. Level-spacing systematics for negative- and positive-parity bands in ^{117,119,121,123,125,127,129}Ba.

doi: 10.1103/PhysRevC.95.024301