161 articles – 2219 Notices  [english version]
 HAL : in2p3-00184813, version 1
 arXiv : 0711.0101
 International Conference on Particles and Nuclei, Eilat : Israël (2008)
 First access to $\beta$ half-lives approaching the r-process path near N=126
 (2008)
 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.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0711.0101
 in2p3-00184813, version 1 http://hal.in2p3.fr/in2p3-00184813 oai:hal.in2p3.fr:in2p3-00184813 Contributeur : Dominique Girod <> Soumis le : Vendredi 2 Novembre 2007, 08:32:04 Dernière modification le : Mardi 2 Décembre 2008, 10:41:00