Recent progress in measuring β half-lives of nuclei approaching the r-process waiting point A = 195

Heavy neutron-rich nuclei close to N = 126 were produced by fragmentation of a 1 A   GeV 208 Pb beam at the FRS at GSI. The β-decay half-lives of 8 nuclides have been determined using a novel numerical analysis method. The comparison of the data with model calculations provides indications on the im...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear physics. A 2009-08, Vol.827 (1), p.587c-589c
Main Authors: Kurtukian-Nieto, T., Benlliure, J., Schmidt, K.-H., Audouin, L., Becker, F., Blank, B., Borzov, I.N., Casarejos, E., Fernández-Ordóñez, M., Giovinazzo, J., Henzlova, D., Jurado, B., Langanke, K., Martínez-Pinedo, G., Pereira, J., Rejmund, F., Yordanov, O.
Format: Article
Language:English
Subjects:
Heavy neutron-rich nuclei
r-process nucleosynthesis
β half-lives
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Heavy neutron-rich nuclei close to N = 126 were produced by fragmentation of a 1 A   GeV 208 Pb beam at the FRS at GSI. The β-decay half-lives of 8 nuclides have been determined using a novel numerical analysis method. The comparison of the data with model calculations provides indications 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 may be faster than previously expected.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2009.05.129