Beta-decay half-lives of new neutron-rich chromium-to-nickel isotopes and their consequences for the astrophysical r-process

Details Beta-decay half-lives of new neutron-rich chromium-to-nickel isotopes and their consequences for the astrophysical r-process Beta-decay half-lives of new neutron-rich chromium-to-nickel isotopes and their consequences for the astrophysical r-process

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phlb..164...22b&link_type=abstract

Physics Letters B, Volume 164, Issue 1-3, p. 22-26.

Physics

31

Scientific paper

Beta-decay studies of the new neutron-rich isotopes 58,59Cr, 63Mn, 66,67Co and 69Ni, yielding distinctly shorter half-lives than the corresponding theoretical predictions, are presented. The influence of the short half-lives on the r-process calculations of nuclear abundances is discussed. It is concluded that a significantly higher neutron density than the one obtained from explosive helium burning in supernovae is need to reproduce the observe abundances around A=80.

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