New isotope Si-44 and systematics of the production cross sections of the most neutron-rich nuclei

作者:Tarasov O B*; Baumann T; Amthor A M; Bazin D; Folden C M III; Gade A; Ginter T N; Hausmann M; Matos M; Morrissey D J; Nettleton A; Portillo M; Schiller A; Sherrill B M; Stolz A; Thoennessen M
来源:Physical Review C, 2007, 75(6): 064613.
DOI:10.1103/PhysRevC.75.064613

摘要

The results of measurements of the production of neutron-rich nuclei by the fragmentation of a Ca-48 beam at 142 MeV/nucleon are presented. Evidence was found for the production of a new isotope that is the most neutron-rich silicon nuclide, Si-44, in a net neutron pickup process. A simple systematic framework was found to describe the production cross sections based on thermal evaporation from excited prefragments that allows extrapolation to other weak reaction products.

  • 出版日期2007-6