MULTIPARTICLE EXCITATIONS AND IDENTICAL BANDS IN THE SUPERDEFORMED GD-149 NUCLEUS

被引：28

作者：

FLIBOTTE, S

HACKMAN, G

THEISEN, C

ANDREWS, HR

BALL, GC

BEAUSANG, CW

BECK, FA

BELIER, G

BENTLEY, MA

BYRSKI, T

CURIEN, D

DEFRANCE, G

DISDIER, D

DUCHENE, G

FALLON, P

HAAS, B

JANZEN, VP

JONES, PM

KHARRAJA, B

KUEHNER, JA

LISLE, JC

MERDINGER, JC

MULLINS, SM

PAUL, ES

PREVOST, D

RADFORD, DC

RAUCH, V

SMITH, JF

STYCZEN, J

TWIN, PJ

VIVIEN, JP

WADDINGTON, JC

WARD, D

ZUBER, K

机构：

[1] MCMASTER UNIV,DEPT PHYS & ASTRON,HAMILTON L8S 4K1,ONTARIO,CANADA

[2] CHALK RIVER LABS,AECL RES,CHALK RIVER K0J 1J0,ON,CANADA

[3] UNIV LIVERPOOL,OLIVER LODGE LAB,LIVERPOOL L69 3BX,ENGLAND

[4] SERC,DARESBURY LAB,SCI & ENGN RES COUNCIL,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

[5] LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720

[6] UNIV MANCHESTER,SCHUSTER LAB,MANCHESTER M13 9PL,LANCS,ENGLAND

[7] INST NUCL PHYS,PL-31342 KRAKOW,POLAND

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.71.688

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Eight superdeformed rotational bands have been observed in the 149Gd nucleus. Several excited bands have partners in neighboring nuclei which differ by up to four nucleons, with nearly identical dynamic moments of inertia and quantized gamma-ray phasing. These observations cannot be easily explained by theoretical models including an intrinsic scaling with mass of the moment of inertia. A paired backbend and an interaction due to an accidental degeneracy between two superdeformed levels have also been observed.

引用

页码：688 / 691

页数：4

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