Phys.Rev. C 95, 024316 (2017)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, K.Hadynska-Klek, J.J.Valiente-Dobon, C.Wheldon, E.Teruya, N.Yoshinaga, K.Arnswald, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, B.Fu, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, R.Hirsch, H.Hua, P.R.John, J.Jolie, A.Jungclaus, L.Kaya, W.Korten, I.Y.Lee, S.Leoni, L.Lewandowski, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Radeck, F.Recchia, P.H.Regan, D.Rosiak, N.Saed-Samii, E.Sahin, F.Scarlassara, D.Schneiders, M.Seidlitz, B.Siebeck, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.D.Warner, A.Wiens, C.Y.Wu, K.O.Zell

Isomers and high-spin structures in the N=81 isotones ¹³⁵Xe and ¹³⁷Ba

NUCLEAR REACTIONS ²³⁸U(¹³⁶Xe, X), E=1 GeV; ²⁰⁸Pb(¹³⁶Xe, X), E=930 MeV; ¹⁹⁸Pt(¹³⁶Xe, X), E=850 MeV; ¹³⁰Te(¹¹B, 3np)¹³⁷Ba, E=54 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin, γγ-coin, (TKEL)γ-coin, half-lives of isomers by γγ(t). Four experiments carried out using ¹³⁶Xe beam with ²⁰⁸Pb and ²³⁸U targets using PRISMA magnetic mass spectrometer and AGATA demonstrator array at Legnaro PIAVE+ALPI accelerator, ¹³⁶Xe beam with ¹⁹⁸Pt target using GAMMASPHERE and CHICO particle detector arrays at LBNL-cyclotron facility, and ¹¹B beam with ¹³⁰Te target using HORUS array at Cologne FN Tandem accelerator. ¹³⁵Xe, ¹³⁷Ba; deduced levels, J, π, isomers, configurations, B(E2). Comparison with shell-model calculations. Systematics of levels and isomers in N=81 nuclides ¹³¹Sn, ¹³³Te, ¹³⁵Xe, ¹³⁷Ba, ¹³⁹Ce, ¹⁴¹Nd, ¹⁴³Sm and ¹⁴⁵Gd.

NUCLEAR STRUCTURE ¹³⁵Xe, ¹³⁷Ba; calculated levels, J, π, B(E2) using large-scale shell-model with PQM130 and SN100PN interactions, average proton occupation numbers in each single particle orbit of the gdsh model space. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.024316