Shape coexistence and shape transition in N similar or equal to Z nuclei from krypton to molybdenum

被引：76

作者：

Petrovici, A ^{[1
]}

Schmid, KW ^{[1
]}

Faessler, A ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST THEORET PHYS,D-72076 TUBINGEN,GERMANY

来源：

NUCLEAR PHYSICS A | 1996年 / 605卷 / 03期

关键词：

D O I：

10.1016/0375-9474(96)00224-2

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：

The recent investigations of the shape coexistence phenomena dominating the structure of even-even and odd-odd nuclei in the A similar to 70 mass region are extended to N similar or equal to Z nuclei ranging from krypton to molybdenum. Positive-parity states with even angular momenta in Kr-72, Sr-76, Sr-78, Zr-80 and Mo-84 are investigated within the EXCITED VAMPIR approximation using essentially complex Hartree-Fock-Bogoliubov transformations and a relatively large model space. The results are compared with the available experimental data. We obtain an oblate ground band and strong oblate-prolate mixing for N = Z = 36, almost pure prolate and oblate bands, with the yrast one being prolate in Sr-76, maximum prolate deformation in Sr-76,Sr-78 and Zr-80 With very high-lying non-yrast bands and decreased prolate quadrupole deformation for the N = Z = 42 system. Predictions for the electromagnetic properties of the investigated states are presented, too.

引用

页码：290 / 300

页数：11

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