HIGH-SPIN SPECTROSCOPY OF I-119, I-121 - PROLATE AND OBLATE SHAPE COEXISTENCE

被引：89

作者：

LIANG, Y ^{[1
]}

FOSSAN, DB ^{[1
]}

HUGHES, JR ^{[1
]}

LAFOSSE, DR ^{[1
]}

LAURITSEN, T ^{[1
]}

MA, R ^{[1
]}

PAUL, ES ^{[1
]}

VASKA, P ^{[1
]}

WARING, MP ^{[1
]}

XU, N ^{[1
]}

机构：

[1] SUNY STONY BROOK, DEPT PHYS, STONY BROOK, NY 11794 USA

来源：

PHYSICAL REVIEW C | 1992年 / 45卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.45.1041

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 odd-proton I-119, I-121 isotopes have been studied following heavy-ion fusion-evaporation reactions using boron and carbon beams. Both prolate (gamma = 0-degrees) and oblate (gamma = -60-degrees) collective bands have been observed built on low-lying positive- and negative-parity proton states, namely, h11/2, g9/2, g7/2, and d5/2 orbitals. At the highest spins (approximately 39/2) the collective behavior of the h11/2 yrast band is seen to break down when noncollective oblate states become yrast, resulting in the observation of band termination. The terminating state involves the pi-h11/2x[pi-g7/2]2x[nu-h11/2]2 configuration at gamma = +60-degrees.

引用

页码：1041 / 1057

页数：17

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