Title: Beta-decay of neutron-deficient even-mass indium isotopes - evidence for population of highly-excited states in the cadmium-daughter nuclei
Authors: Szerypo, J ×
Huyse, Marc
Reusen, G
Van Duppen, Piet
Janas, Z
Keller, H
Kirchner, R
Klepper, O
Piechaczek, A
Roeckl, E
Schardt, D
Schmidt, K
Grzywacz, R
Pfutzner, M
Plochocki, A
Rykaczewski, K
Zylicz, J
Alkhazov, G
Batist, L
Bykov, A
Wittmann, V
Brown, Ba #
Issue Date: Feb-1995
Publisher: Elsevier science bv
Series Title: Nuclear Physics A vol:584 issue:2 pages:221-240
Abstract: By using mass-separated sources, positrons as well as beta-delayed protons and gamma-rays were measured from the beta-decay of In-102 (T1/2 22 +/- 1 s) and In-100 (T1/2 = 6.1 +/- 0.9 s). In particular, the average beta(+)/(beta(+) + EC) ratio for the decay of In-102 was measured to be 0.76(4) and the level scheme of Cd-102 was extended. Whereas no direct beta(+)/EC feeding of the identified Cd-102 levels was observed, there is evidence for population of Cd-102 states at high excitation energy followed by statistical gamma-decay. This feature, which has been deduced on the basis of the measured positron spectrum and the measured beta(+)/(beta(+) + EC) ratio of the In-102 decay, is compared to the decay properties of the heavier odd-odd indium isotopes In-104, In-106 and In-108, and is also used to interpret the observed P-delayed proton data of In-102 and In-100. For the first time, large-space shell-model calculations have been performed for the Gamow-Teller decay of heavy odd-odd nuclei. The decay results from these calculations are in good overall agreement with the gross decay properties of In-102 and In-100 deduced from the experiment.
ISSN: 0375-9474
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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