New neutron-deficient isotopes of barium and rare-earth elements

The authors present an investigation of the short-lived neutron- deficient isotopes of barium and rare-earth elements. By using the BEMS-2 isotope separator on a heavy ion beam, 19 new isotopes were produced with mass numbers ranging from 117 to 138. Five of these (/sup 117/Ba, /sup 129,131/Nd and /...

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Detalles Bibliográficos
Autores principales: Bogdanov, D D, Demyanov, A V, Karnaukhov, V A, Petrov, L A, Plochocki, A, Subbotin, V G, Voboril, J
Lenguaje:eng
Publicado: CERN 1976
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.5170/CERN-1976-013.299
http://cds.cern.ch/record/873871
Descripción
Sumario:The authors present an investigation of the short-lived neutron- deficient isotopes of barium and rare-earth elements. By using the BEMS-2 isotope separator on a heavy ion beam, 19 new isotopes were produced with mass numbers ranging from 117 to 138. Five of these (/sup 117/Ba, /sup 129,131/Nd and /sup 133,135/Sm) turned out to be delayed proton emitters. The beta -decay probabilities for the new isotopes have been analyzed in terms of the beta -strength function. An analysis of the proton spectrum shape has been performed using the statistical model for delayed proton emission.

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