ONSET OF COLLECTIVITY IN NEUTRON-DEFICIENT PO-196,PO-198

被引：43

作者：

BERNSTEIN, LA

CIZEWSKI, JA

JIN, HQ

YOUNES, W

HENRY, RG

FARRIS, LP

CHAROS, A

CARPENTER, MP

JANSSENS, RVF

KHOO, TL

LAURITSEN, T

BEARDEN, IG

YE, D

BECKER, JA

HENRY, EA

BRINKMAN, MJ

HUGHES, JR

KUHNERT, A

WANG, TF

STOYER, MA

DIAMOND, RM

STEPHENS, FS

DELEPLANQUE, MA

MACCHIAVELLI, AO

LEE, IY

CEDERWALL, B

OLIVEIRA, JRB

BURDE, J

FALLON, P

DUYAR, C

DRAPER, JE

RUBEL, E

VO, DT

机构：

[1] ARGONNE NATL LAB, ARGONNE, IL 60439 USA

[2] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

[3] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

[4] PURDUE UNIV, W LAFAYETTE, IN 47907 USA

[5] UNIV NOTRE DAME, NOTRE DAME, IN 46556 USA

[6] UNIV CALIF DAVIS, DAVIS, CA 95616 USA

[7] IOWA STATE UNIV SCI & TECHNOL, AMES, IA 50011 USA

来源：

PHYSICAL REVIEW C | 1995年 / 52卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.52.621

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：

We have studied via in-beam gamma-ray spectroscopy Po-196 and Po-198, which are the first neutron-deficient Po isotopes to exhibit a collective low-lying structure. The ratios of yrast state energies and the E2 branching ratios of transitions from non-yrast to yrast states are indicative of a low-lying vibrational structure. The onset of collective motion in these isotopes can be attributed to the opening of the neutron i(13/2) orbital at N approximate to 112 and the resulting large overlap between the two valence protons in the h(9/2) orbital and the valence neutrons in the i(13/2) orbital.

引用

页码：621 / 627

页数：7

共 16 条

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