High-Spin Level Systematics in ^{186-194}Pt and Rotation-Alignment Coupling
High-Spin Level Systematics in ^{186-194}Pt and Rotation-Alignment Coupling
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DOI：
10.1103/physrevlett.34.1110
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发表时间：
1975-04
影响因子：
8.6
通讯作者：
M. Piiparinen;J. Cunnane;P. J. Daly;C. L. Dors;F. Bernthal;T. Khoo
中科院分区：
文献类型：
--
作者：
M. Piiparinen;J. Cunnane;P. J. Daly;C. L. Dors;F. Bernthal;T. Khoo
通过（α，xn γ）反应对形状转变核Pt 186到Pt 194的系统研究揭示了丰富多样的高自旋结构现象，这些现象可以从转动-排列耦合以及集体激发模和单粒子激发模之间的相互作用来定性地理解。Pt 1 8 8，1 9 0，1 9 2，1 9 4的正宇称比拉斯特序列中的剧烈回弯归因于旋转排列的（ν i 13 2− 2）和（π h 11 2− 2）带与基态带的交叉。
Systematic investigations of the shape-transitional nuclei Pt 186 to Pt 194 by (α, xn γ) reactions have revealed a rich variety of high-spin structural phenomena, which can be qualitatively understood in terms of rotation-alignment coupling and the interplay between collective and single-particle excitation modes. Acute backbending in the positive-parity yrast sequences of Pt 1 8 8, 1 9 0, 1 9 2, 1 9 4 is attributed to the intersection of rotation-aligned (ν i 13 2− 2) and (π h 11 2− 2) bands with the ground bands.