First observation of excited states in 197At:: the onset of deformation in neutron-deficient astatine nuclei

被引：30

作者：

Smith, MB

Chapman, R

Cocks, JFC

Dorvaux, O

Helariutta, K

Jones, PM

Julin, R

Juutinen, S

Kankaanpää, H

Kettunen, H

Kuusiniemi, P

Le Coz, Y

Leino, M

Middleton, DJ

Muikku, M

Nieminen, P

Rahkila, P

Savelius, A

Spohr, KM

机构：

[1] Univ Paisley, Dept Elect Engn & Phys, Paisley PA1 2BE, Renfrew, Scotland

[2] Univ Jyvaskyla, Dept Phys, Accelerator Lab, FIN-40351 Jyvaskyla, Finland

来源：

EUROPEAN PHYSICAL JOURNAL A | 1999年 / 5卷 / 01期

关键词：

D O I：

10.1007/s100500050254

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：

Excited states in the Z = 85 nucleus At-197 have been identified for the first time using the recoil-decay-tagging (RDT) technique. The excitation energy of these states is found to be consistent with the systematics of neutron-deficient astatine nuclei and with theoretical calculations indicating that the nucleus may be deformed in its ground state.

引用

页码：43 / 47

页数：5

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