First access to beta half-lives approaching the r-process path near N=126
Nuclear Experiment
2007-11-02 v1
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.
Cite
@article{arxiv.0711.0101,
title = {First access to beta half-lives approaching the r-process path near N=126},
author = {T. Kurtukian-Nieto and J. Benlliure and L. Audouin and F. Becker and B. Blank and I. N. Borzov and E. Casarejos and M. Fernandez-Ordonez and J. Giovinazzo and D. Henzlova and B. Jurado and K. Langanke and G. Martinez-Pinedo and J. Pereira and F. Rejmund and K. -H. Schmidt and O. Yordanov},
journal= {arXiv preprint arXiv:0711.0101},
year = {2007}
}
Comments
4 pages, 4 figures