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c ○ ESO 2010 Astronomy Astrophysics Neutron-induced astrophysical reaction rates for translead nuclei ⋆

By I. V. Panov, I. Yu. Korneev, T. Rauscher, G. Martínez-pinedo, A. Kelić-heil, N. T. Zinner and F. -k. Thielemann

Abstract

Neutron-induced reaction rates, including fission and neutron capture, are calculated in the temperature range 10 8 ≤ T (K) ≤ 10 10 within the framework of the statistical model for targets with the atomic number 84 ≤ Z ≤ 118 (from Po to Uuo) from the neutron to the proton drip-line. Four sets of rates have been calculated, utilizing- where possible- consistent nuclear data for neutron separation energies and fission barriers from Thomas-Fermi (TF), Extended Thomas-Fermi plus Strutinsky Integral (ETFSI), Finite-Range Droplet Model (FRDM) and Hartree-Fock-Bogolyubov (HFB) predictions. Tables of calculated values as well as analytic seven parameter fits in the standard REACLIB format are supplied. We also discuss the sensitivity of the rates to the input, aiming at a better understanding of the variations introduced by the nuclear input. Key words. nuclear reactions, nucleosynthesis, abundances – supernovae: general – stars: neutron 1

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.1920
Provided by: CiteSeerX
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