1999/03/15 by E. Caurier, K. Langanke, G. Martinez-Pinedo +1 · 1 citation
Physics and Astronomy · #nucl-th
paper · pdf · doi:10.1016/s0375-9474(99)00240-7
published as Nucl.Phys. A653 (1999) 439-452 · 11 pages, 5 figures
arxiv created 1999/03/15 · arxiv updated 2009/12/01
Electron capture and beta-decay rates on nuclei in the mass range A=45-65 play an important role in many astrophysical environments. The determination of these rates by large-scale shell model calculations is desirable, but it requires to reproduce the Gamow-Teller strength distributions and spectra of the pf shell nuclei. We show in this paper that large-scale shell model calculations, employing a slightly monopole-corrected version of the wellknown KB3 interaction, fulfill these necessary requirements. In particular, our calculations reproduce the experimentally available GT+ and GT- strength distributions and the nuclear halflives, and describe the nuclear spectra appropriately.