First access to $\beta$ half-lives approaching the r-process path near N=126
LANGANKE, K.
Helmholtz zentrum für Schwerionenforschung GmbH [GSI]
Institut für Kernphysik [Darmstadt]
< Réduire
Helmholtz zentrum für Schwerionenforschung GmbH [GSI]
Institut für Kernphysik [Darmstadt]
Langue
en
Communication dans un congrès
Ce document a été publié dans
2008-11-08, Eilat. 2007
Résumé en anglais
Heavy neutron-rich nuclei close to N=126 were produced by fragmentation of a 1 A GeV 208Pb beam at the FRS at GSI. The beta-decay half-lives of 8 nuclides have been determined. The comparison of the data with model ...Lire la suite >
Heavy neutron-rich nuclei close to N=126 were produced by fragmentation of a 1 A GeV 208Pb beam at the FRS at GSI. The beta-decay half-lives of 8 nuclides have been determined. The comparison of the data with model calculations including an approach based on the self-consistent ground-state description and continuum QRPA considering the Gamow-Teller and first-forbidden decays provide a first indication on the importance of first-forbidden transitions around A=195. The measured data indicate that the matter flow in the r-process to heavier fissioning nuclei is faster than previously expected.< Réduire
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