Beta-decay half-lives of new neutron-rich isotopes of Re, Os and Ir approaching the r-process path near N = 126 - Archive ouverte HAL Access content directly
Journal Articles European Physical Journal A Year : 2014

Beta-decay half-lives of new neutron-rich isotopes of Re, Os and Ir approaching the r-process path near N = 126

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T. Kurtukian Nieto
J. Benlliure
  • Function : Author
K.-H. Schmidt
  • Function : Author
F. Becker
  • Function : Author
Bertram Blank
I.N. Borzov
  • Function : Author
E. Casarejos
  • Function : Author
M. Fernandez-Ordonez
  • Function : Author
J. Giovinazzo
D. Henzlova
  • Function : Author
K. Langanke
  • Function : Author
G. Martinez-Pinedo
  • Function : Author
J. Pereira
  • Function : Author
O. Yordanov
  • Function : Author

Abstract

Heavy neutron-rich nuclei close to N = 126 were produced by fragmentation of a 1A GeV 208Pb beam at the FRS at GSI. The β-decay half-lives of 7 nuclides have been determined using a novel numerical analysis method. The half-lives of 202,199Ir, 200,199Os and 196Re are reported for the first time. The comparison of the data with model calculations provides indications on the importance of first-forbidden transitions on the β-decay of nuclei around N = 126 and Z < 82.
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Dates and versions

in2p3-01063903 , version 1 (15-09-2014)

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T. Kurtukian Nieto, J. Benlliure, K.-H. Schmidt, L. Audouin, F. Becker, et al.. Beta-decay half-lives of new neutron-rich isotopes of Re, Os and Ir approaching the r-process path near N = 126. European Physical Journal A, 2014, 50, pp.135-142. ⟨10.1140/epja/i2014-14135-5⟩. ⟨in2p3-01063903⟩
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