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

6533b86cfe1ef96bd12c80a1

RESEARCH PRODUCT

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

O. Dorvaux Heikki Kettunen Panu Rahkila K. M. Spohr J. F. C. Cocks Pasi Kuusiniemi Y. Le Coz R. Julin Peter M. Jones K. Helariutta D.j. Middleton H. Kankaanpää S. Juutinen M. Muikku A. Savelius R. Chapman M. B. Smith Matti Leino Paivi Nieminen

subject

Physics Nuclear and High Energy Physics [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear Theory Hadron chemistry.chemical_element [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]medicine.anatomical_structure chemistry Excited state medicine Nuclear fusion Neutron Atomic physics Nuclear Experiment Ground state Astatine Nucleus Excitation

description

Excited states in the Z= 85 nucleus 197At 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.

year	journal	country	edition	language
1999-05-01

http://hal.in2p3.fr/in2p3-00009061

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