Investigation of high-K states in No-252
- Sulignano, B.
- Theisen, C.
- P. Delaroche, J.
- Girod, M.
- Ljungvall, J.
- Ackermann, D.
- Antalic, S.
- Dorvaux, O.
- Drouart, A.
- Gall, B.
- Goorgen, A.
- T. Greenlees, P.
- Hauschild, K.
- D. Herzberg, R.
- P. Hessberger, F.
- Jakobsson, U.
- Jones, P.
- Julin, R.
- Juutinen, S.
- Ketelhut, S.
- Korten, W.
- Leino, M.
- Lopez-Martens, A.
- Nyman, M.
- Obertelli, A.
- Pakarinen, J.
- Papadakis, P.
- Parr, E.
- Peura, P.
- Piot, J.
- Rahkila, P.
- Rostron, D.
- Ruotsalainen, P.
- Saren, J.
- Scholey, C.
- Sorri, J.
- Uusitalo, J.
- Venhart, M.
- Zielinska, M.
DOIAbstract
In this paper we investigate the rotational band built upon a two-quasiparticle 8(-) isomeric state of No-252 up to spin I-pi = 22(-). The excited states of the band were populated with the Pb-206(Ca-48, 2n) fusion-evaporation reaction. An unambiguous assignment of the structure of the 8(-) isomer as a 7/2(+)[624](nu) circle times 9/2(-)[734](nu) configuration has been made on the basis of purely experimental data. Comparisons with triaxial self-consistent Hartree-Fock-Bogoliubov calculations using the D1S force and breaking time-reversal as well as z-signature symmetries are performed. These predictions are in agreement with present measurements. Mean-field calculations extended to similar states in Fm-250 support the interpretation of the...
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