Fission and the r-Process: The Rates of Induced and Delayed Fission

Details Fission and the r-Process: The Rates of Induced and Delayed Fission Fission and the r-Process: The Rates of Induced and Delayed Fission

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003astl...29..510p&link_type=abstract

Astronomy Letters, vol. 29, p. 510-521 (2003)

Astronomy and Astrophysics

Astronomy

4

Scientific paper

The most recent fission-barrier calculations based on improved mass formulas indicate that the adopted values are underestimated. We analyze the dependence of the fission rates on the fission barrier and show that an increase in the fission barriers leads not so much to a decrease in the importance of fission as to the possible synthesis of heavier elements in the r-process. The rates of induced fission of most isotopes with Z>80 at astrophysical energies have been calculated for the first time for fission barriers obtained from different theoretical models.

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