MICROSCOPIC LOOK AT BACKBENDING

被引：3

作者：

RATNARAJU, RD ^{[1
]}

HECHT, KT ^{[1
]}

CHANG, BD ^{[1
]}

DRAAYER, JP ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV, DEPT PHYS & ASTRON, BATON ROUGE, LA 70803 USA

来源：

PHYSICAL REVIEW C | 1979年 / 20卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.20.2397

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：

A shell-model calculation of high-spin phenomena in the highly neutron deficient Ba-Ce-Nd region is reported. An inert spherically symmetric Z=50=N core is assumed with extracore nucleons distributed among the g72, d52, d32, s12 normal-parity orbitals and the unique parity h112 orbital with the number of particles within each set fixed. The normal-parity subspace is further truncated to a single irreducible representation of pseudo SU(3) made effective through the mapping (g72d52d32s12)→(f72f52p32p12). A five-dimensional quasispin classification is used for the unique-parity h112 space which is restricted to states with seniority zero and two. Using a surface delta interaction we are able to reproduce the observed backbending in Ba7056126. The model affords a microscopic look at Coriolis antipairing and pair realignment phenomena. NUCLEAR STRUCTURE Ba56126; Shell-model interpretation of backbending, pair realignment, and Coriolis antipairing; h112; g72d52d32s12 configurations with pseudo-SU3 truncation. © 1979 The American Physical Society.

引用

页码：2397 / 2402

页数：6

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