1ST EVIDENCE FOR THE HYPERDEFORMED NUCLEAR SHAPE AT HIGH ANGULAR-MOMENTUM

被引：82

作者：

GALINDOURIBARRI, A

ANDREWS, HR

BALL, GC

DRAKE, TE

JANZEN, VP

KUEHNER, JA

MULLINS, SM

PERSSON, L

PREVOST, D

RADFORD, DC

WADDINGTON, JC

WARD, D

WYSS, R

机构：

[1] UNIV TORONTO,DEPT PHYS,TORONTO M5S 1A7,ONTARIO,CANADA

[2] JOINT INST HEAVY ION RES,OAK RIDGE,TN 37831

[3] MCMASTER UNIV,DEPT PHYS & ASTRON,HAMILTON L8S 4M1,ONTARIO,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.71.231

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A ridge structure consisting of stretched E2 transitions and extending from HBARw congruent-to 0.6 to 0.75 MeV has been found in a proton-selected gamma-gamma matrix in the reaction Sn-120(Cl-37,p xn)Dy-152, Dy-153 at 187 MeV. The ridge spacing corresponds to a dynamic moment of inertia, T(2), of about 130hBAR2 MeV-1 and suggests the existence of a hyperdeformed prolate shape with a quadrupole deformation beta2 greater-than-or-equal-to 0.9. Furthermore, a cascade of 10 discrete transitions with an average energy spacing of 30 +/- 3 keV has been found. This result is consistent with calculations indicating conditions favorable to hyperdeformed structures.

引用

页码：231 / 234

页数：4

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