First access to $\beta$ half-lives approaching the r-process path near N=126 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 2007

First access to $\beta$ half-lives approaching the r-process path near N=126

Abstract

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.

Dates and versions

in2p3-00184813 , version 1 (02-11-2007)

Identifiers

  • HAL Id : in2p3-00184813 , version 1
  • ARXIV : 0711.0101

Cite

T. Kurtukian Nieto, J. Benlliure, L. Audouin, F. Becker, Bertram Blank, et al.. First access to $\beta$ half-lives approaching the r-process path near N=126. International Conference on Particles and Nuclei, Nov 2008, Eilat, Israel. ⟨in2p3-00184813⟩
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