Alignment processes and shape variations in 184Pt

Autor: S. Pilotte, D. G. Popescu, C. Baktash, D. G. Sarantites, V. P. Janzen, Noah R. Johnson, K. Honkanen, J. Dubuc, G. Kajrys, I. Y. Lee, Z. M. Liu, Witold Nazarewicz, J. K. Johansson, L. L. Riedinger, J.-Y. Zhang, A. Johnson, M. L. Halbert, R. Bengtsson, D.R. Haenni, M.P. Carpenter, S. Monaro, Johan Nyberg, Y. Schutz, W. Schmitz, L.H. Courtney, J. C. Waddington, Ramon Wyss, C.R. Bingham, T. Bengtsson, A. J. Larabee
Rok vydání: 1990
Předmět:
Zdroj: Nuclear Physics A. 513:125-173
ISSN: 0375-9474
Popis: High-spin states in the transitional nucleus 184Pt were populated via the reactions 154Sm(34S, 4n)184Pt and 172Yb(16O, 4n)184Pt. The yrast band was extended up to I = 28 ħ and six new side bands built on both neutron and proton quasiparticle configurations were observed. Shell correction-type calculations indicate variations of the nuclear shape in different bands, especially as a result of band crossings due to the process of angular momentum alignment. Comparison of the band characteristics are made between 184Pt and eight adjacent nuclei. The pattern of band crossings in these nine nuclei is considered from the viewpoint of blocking comparisons and of theoretical calculations. The competition between low-frequency vi 13 2 and πh 9 2 band crossings is discussed.
Databáze: OpenAIRE