https://doi.org/10.1051/epjconf/201610705001
Impact of low-energy multipole excitations and pygmy resonances on radiative nucleon captures
1 Frankfurt Institute for Advanced Studies (FIAS), D-60438 Frankfurt am Main, Germany
2 Institut für Theoretische Physik, Universität Giessen, 35390 Giessen, Germany
3 Institute for Nuclear Research and Nuclear Energy, 1784 Sofia, Bulgaria
4 GSI Darmstadt, Darmstadt, Germany
a e-mail: tsoneva@theo.physik.uni-giessen.de
Published online: 19 January 2016
Nuclear structure theory is considered in the framework of the development of a microscopic model for nucleon-capture astrophysical implementations. In particular, microscopically obtained strength functions from a theoretical method incorporating density functional theory and quasiparticle-phonon model are used as an input in a statistical reaction model. The approach is applied in systematic investigations of the impact of low-energy multipole excitations and pygmy resonances on dipole photoabsorption and radiative neutronand proton-capture cross sections of key s- and r-process nuclei which is discussed in comparison with the experiment. For the cases of the short-lived isotopes 89Zr and 91Mo theoretical predictions are made.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.