ALIGNMENT PROCESSES AND SHAPE VARIATIONS IN PT-184

被引:61
作者
CARPENTER, MP
BINGHAM, CR
COURTNEY, LH
JANZEN, VP
LARABEE, AJ
LIU, ZM
RIEDINGER, LL
SCHMITZ, W
BENGTSSON, R
BENGTSSON, T
NAZAREWICZ, W
ZHANG, JY
JOHANSSON, JK
POPESCU, DG
WADDINGTON, JC
BAKTASH, C
HALBERT, ML
JOHNSON, NR
LEE, IY
SCHUTZ, YS
NYBERG, J
JOHNSON, A
WYSS, R
DUBUC, J
KAJRYS, G
MONARO, S
PILOTTE, S
HONKANEN, K
SARANTITES, DG
HAENNI, DR
机构
[1] OAK RIDGE NATL LAB,JOINT INST HEAVY ION RES,OAK RIDGE,TN 37831
[2] OAK RIDGE NATL LAB,HOLIFIELD HEAVY ION RES FACIL,OAK RIDGE,TN 37831
[3] MANNE SIEGBAHN INST PHYS,S-10405 STOCKHOLM,SWEDEN
[4] ROYAL INST TECHNOL,DEPT PHYS 1,S-10044 STOCKHOLM 70,SWEDEN
[5] UNIV MONTREAL,MONTREAL H3C 3J7,QUEBEC,CANADA
[6] WASHINGTON UNIV,ST LOUIS,MO 63110
[7] TEXAS A&M UNIV SYST,INST CYCLOTRON,COLLEGE STN,TX 77843
基金
加拿大自然科学与工程研究理事会;
关键词
Nuclear reaction;
D O I
10.1016/0375-9474(90)90346-N
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
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 h{stroke} 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. © 1990.
引用
收藏
页码:125 / 173
页数:49
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