The onset of deformation in neutron-deficient At nuclei

Excited states in the {sup 197}At nucleus have been identified for the first time using the recoil-decay-tagging technique. The excitation energy of these states is found to be consistent with the systematics of neutron-deficient. At nuclei and with calculations indicating that the nucleus may be de...

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Bibliographic Details
Published in:AIP conference proceedings 1999-11, Vol.495 (1)
Main Authors: Smith, M. B., Chapman, R., Middleton, D. J., Spohr, K.-M., Cocks, J. F. C., Dorvaux, O., Helariutta, K., Jones, P. M., Julin, R., Juutinen, S., Kankaanpaeae, H., Kettunen, H., Kuusiniemi, P., Leino, M., Muikku, M., Nieminen, P., Rahkila, P., Savelius, A., Coz, Y. Le
Format: Article
Language:English
Subjects:
ASTATINE 195
ASTATINE 197
ASTATINE 219
DEFORMED NUCLEI
EXCITATION
EXCITED STATES
GAMMA SPECTROSCOPY
GROUND STATES
NEUTRON-DEFICIENT ISOTOPES
NEUTRONS
NUCLEAR DECAY
NUCLEAR DEFORMATION
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR STRUCTURE
RECOILS
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Summary:Excited states in the {sup 197}At nucleus have been identified for the first time using the recoil-decay-tagging technique. The excitation energy of these states is found to be consistent with the systematics of neutron-deficient. At nuclei and with calculations indicating that the nucleus may be deformed in its ground state. A more recent experiment, to study states in {sup 195}At, is discussed.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.1301789