Abstract
High-spin states in179Re have been populated by the165Ho(18O, 4n) and170Er(14N,5n) reactions. A level scheme is constructed from the studies ofγγ-coincidences using anti-Compton spectrometer arrays. The previously known 5/2+[402], 1/2− [541] and 9/2− [514] bands have been extended to 35/2+, 45/2− and 39/2−, respectively. In addition a 1/2+ [660] band, a three-quasiparticle band and two isomers were established. Furthermore several level sequences were identified decaying into the 5/2+ [402] and 1/2− [541] bands. This allowed to determine the excitation energy of the 9/2− member of the latter band. The band crossing features of the bands have been explained as the rotation alignment of ani 13/2 quasineutron pair taking into account shape changes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Walus, W., Carlėn, L., Jonsson, S., Lyttkens, J., Ryde, H., Kownacki, J., Nazarewicz, W., Bacelar, J.C., Dudek, J., Garrett, J.D., Hagemann, G.B., Herskind, B., Yang, C.X.: Phys. Scr.34, 710 (1986)
Neskakis, A., Lieder, R.M., Müller-Veggian, M., Beuscher, H., Davidson, W.F.: Nucl. Phys. A261, 189 (1976)
Yang, C.X., Kownacki, J., Garrett, J.D., Hagemann, G.B., Herskind, B., Bacelar, J.C., Leslie, J.R., Chapman, R., Lisle, J.C., Mo, J.N., Simcock, A., Wilmott, J.C., Walus, W., Carlėn, L., Jonsson, S., Lyttkens, J., Ryde, H., Tjøm, P.O., Walker, P.M.: Phys. Lett.133B, 39 (1983)
Venkova, Ts., Lieder, R.M., Morek, T., Gast, W., Hebbinghaus, G., Krämer-Flecken, A., Schäffler-Kräh, J., Urban, W., Sletten, G., Kluge, H., Maier, K.H.: (to be published)
Leigh, J.R., Newton, J.O., Ellis, L.A., Evans, M.C., Emmott, M.J.: Nucl. Phys. A183, 177 (1972)
Robinson, L.G.: Thesis, Indiana University 1976
Nuclear Data Sheets55, 483 (1988)
Venkova, Ts., Lieder, R.M., Morek, T., Sletten, G., Gast, W., Hebbinghaus, G., Krämer-Flecken, A., Urban, W., Kluge, H., Maier, K.H.: Annual Report, IKP, KFA, Jülich, p. 41 (1988)
Lieder, R.M., Jäger, H.M., Neskakis, A., Venkova, Ts., Michel, C., NIM220, 363 (1984); Gast, W. et al.: (to be published)
Krämer-Flecken, A., Morek, T., Lieder, R.M., Gast, W., Hebbinghaus, G., Jäger, H.M., Urban, W.: NIM A275, 333 (1989)
Dors, C.C., Bernthal, F.M., Khoo, T.C., King, C.H., Borggreen, J., Sletten, G.: Nucl. Phys. A314, 61 (1979)
Lieder, R.M., Neskakis, A., Skalski, J., Sletten, G., Garrett, J.D., Dudek, J.: Nucl. Phys. A476, 545 (1988)
Löbner, K.E.G., Vetter, M., Honig, V.: Nucl. Data A7, 495 (1969)
Prior, O., Boehm, F., Nilsson, S.G.: Nucl. Phys. A110, 257 (1968)
Bengtsson, R., Frauendorf, S.: Nucl. Phys. A314, 27 (1979); Nucl. Phys. A327, 139 (1979)
Bacelar, J.C., Chapman, R., Leslie, J.R., Lisle, J.C., Mo, J.N., Paul, E., Simcock, A., Willmott, J.C., Garrett, J.D., Hagemann, G.B., Herskind, B., Holm, A., Walker, P.M.: Nucl. Phys. A442, 547 (1985)
Frauendorf, S., May, F.R., Pashkevich, V.V.: In: Future directions in studies of nuclei far from stability. Hamilton, J.H., Spejewski, E.H., Bingham, C.R., Zganjar, E.F. (eds.), p. 133. Amsterdam: North-Holland 1980