https://doi.org/10.1051/epjconf/201817806001
Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum
1
Department of Physics, University of Oslo, N-0316 Oslo, Norway
2
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
* e-mail: magne.guttormsen@fys.uio.no
** e-mail: a.c.larsen@fys.uio.no
Published online: 16 May 2018
Statistical γ-decay from highly excited states is determined by the nuclear level density (NLD) and the γ-ray strength function (γSF). These average quantities have been measured for several nuclei using the Oslo method. For the first time, we exploit the NLD and γSF to evaluate the γ-width in the energy region below the neutron binding energy, often called the quasi-continuum region. The lifetimes of states in the quasi-continuum are important benchmarks for a theoretical description of nuclear structure and dynamics at high temperature. The lifetimes may also have impact on reaction rates for the rapid neutron-capture process, now demonstrated to take place in neutron star mergers.
© The Authors, published by EDP Sciences, 2018
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. (http://creativecommons.org/licenses/by/4.0/).
