1ST OBSERVATION OF A CROSSING OF OBLATE DIPOLE BANDS IN THE A=200 REGION

被引：15

作者：

BALDSIEFEN, G

BIRKENTAL, U

HUBEL, H

NENOFF, N

RAO, BVT

WILLSAU, P

HEESE, J

KLUGE, H

MAIER, KH

SCHUBART, R

FRAUENDORF, S

机构：

[1] HAHN MEITNER INST KERNFORSCH,W-1000 BERLIN,GERMANY

[2] FORSCHUNGSZENTRUM ROSSENDORF,O-8051 DRESDEN,GERMANY

来源：

PHYSICS LETTERS B | 1993年 / 298卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91706-S

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High-spin states in 199Pb were populated in the W-186(O-18, 5n) reaction at a beam energy of 94 MeV. The analysis of the gamma-ray coincidences revealed a new oblate rotational band of strong dipole transitions which shows a pronounced backbending. The connection between this band and the normal spherical states is established. Thus, spin and excitation energy of an oblate collective band in the Pb isotopes are determined for the first time. The backbending is interpreted as a crossing of bands with different numbers of aligned i13/2 neutrons.

引用

页码：54 / 59

页数：6

共 16 条

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