EPJ Web Conf.
Volume 239, 2020ND 2019: International Conference on Nuclear Data for Science and Technology
|Number of page(s)||4|
|Section||Nuclear Data for Astrophysics and Cosmology|
|Published online||30 September 2020|
γ-ray strength function for astrophysical applications in the IAEA-CRP
1 Department of Physics, Konan University, Kobe, Japan
2 Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, Belgium
3 Department of Physics, University of Oslo, Norway
4 Laboratory of Advanced Science and Technology for Industry, University of Hyogo, Japan
5 Cyclotron Institute, Texas A & M university, USA
6 CEA, DAM, DIF, Arpajon, France
7 Nuclear Data Section, International Atomic Energy Agency, Vienna, Austria
* e-mail: email@example.com
Published online: 30 September 2020
The γ-ray strength function (γSF) is a nuclear quantity that governs photoabsorption in (γ, n) and photoemission in (n, γ) reactions. Within the framework of the γ-ray strength function method, we use (γ, n) cross sections as experimental constraints on the γSF from the Hartree-Fock-Bogolyubov plus quasiparticle-random phase approximation based on the Gogny D1M interaction for E1 and M1 components. The experimentally constrained γSF is further supplemented with the zero-limit M1 and E1 strengths to construct the downward γSF with which (n, γ) cross sections are calculated. We investigate (n, γ) cross sections in the context of astrophysical applications over the nickel and barium isotopic chains along the s-process path.
© The Authors, published by EDP Sciences, 2020
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