Neutron-induced astrophysical reaction rates for translead nuclei^*

¹ Department of Physics, University of Basel, Klingelbergstr. 82, 4056 Basel, Switzerland
² Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya St. 25, 117259 Moscow, Russia e-mail: Igor.Panov@itep.ru
³ Russian Research Center Kurchatov Institute, pl. Kurchatova 1, Moscow 123182, Russia
⁴ GSI Helmholtz Center for Heavy Ion Research, Planckstr. 1, 64291 Darmstadt, Germany
⁵ Department of Physics, Harvard University, Cambridge, MA 02138, USA

Received: 27 February 2009
Accepted: 12 January 2010

Abstract

Neutron-induced reaction rates, including fission and neutron capture, are calculated in the temperature range 10⁸ ≤ T(K) ≤ 10¹⁰ 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.