Journal
NUCLEAR PHYSICS A
Volume 679, Issue 3-4, Pages 337-358Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0375-9474(00)00358-4
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Using the ETFSI (extended Thomas-Fermi plus Strutinsky integral) method, we have calculated the fission barriers of nearly 2000 exotic nuclei, including all the neutron-rich nuclei up to A = 318 that are expected to be relevant to the r-process, and all superheavy nuclei in the vicinity of N = 184, with Z less than or equal to 120, Our calculations were performed with the Skyrme force SkSC4, which was determined in the ETFSI-1 mass fit. For proton-deficient nuclei in the region of N = 184 we find the barriers to be much higher than previously believed, which suggests that the r-process path might continue to mass numbers well beyond 300. For the superheavy nuclei we typically find barrier heights of 6-7 MeV. (C) 2001 Elsevier Science B.V. All rights reserved.
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