The radiative neutron capture by neutron-rich nuclei is estimated with an improved description of the electric giant dipole resonance. In addition, 3 major effects affecting the capture rates by exotic neutron-rich nuclei are studied. These concern the existence of a low-energy E1 pygmy resonance, the overestimate of the statistical predictions for resonance-deficient nuclei and the direct capture mechanism. The total (n,gamma) reaction rates including these 3 effects are evaluated for 3100 neutron-rich nuclei and used in parametric r-process calculations to analyze their impact on the r-abundance distribution.
%0 Journal Article
%1 Goriely:1998
%A Goriely, S.
%D 1998
%K Direct Giant Pygmy captures, dipole r-process resonance,
%P 10--18
%T Radiative neutron captures by neutron-rich nuclei and the r-process nucleosynthesis
%U http://www.sciencedirect.com/science/article/B6TVN-3VWNJPX-20/1/f14cc9032157d6921fa995afa84e5964
%V 436
%X The radiative neutron capture by neutron-rich nuclei is estimated with an improved description of the electric giant dipole resonance. In addition, 3 major effects affecting the capture rates by exotic neutron-rich nuclei are studied. These concern the existence of a low-energy E1 pygmy resonance, the overestimate of the statistical predictions for resonance-deficient nuclei and the direct capture mechanism. The total (n,gamma) reaction rates including these 3 effects are evaluated for 3100 neutron-rich nuclei and used in parametric r-process calculations to analyze their impact on the r-abundance distribution.
@article{Goriely:1998,
abstract = {The radiative neutron capture by neutron-rich nuclei is estimated with an improved description of the electric giant dipole resonance. In addition, 3 major effects affecting the capture rates by exotic neutron-rich nuclei are studied. These concern the existence of a low-energy E1 pygmy resonance, the overestimate of the statistical predictions for resonance-deficient nuclei and the direct capture mechanism. The total (n,[gamma]) reaction rates including these 3 effects are evaluated for 3100 neutron-rich nuclei and used in parametric r-process calculations to analyze their impact on the r-abundance distribution.},
added-at = {2008-12-04T15:57:02.000+0100},
author = {Goriely, S.},
biburl = {https://www.bibsonomy.org/bibtex/2082d3931ed5f9524e690234afc1b93a9/bierphysik},
interhash = {8cd3836627bd93db06788713d6950578},
intrahash = {082d3931ed5f9524e690234afc1b93a9},
keywords = {Direct Giant Pygmy captures, dipole r-process resonance,},
lockkey = {N},
month = {September},
pages = {10--18},
timestamp = {2008-12-04T16:50:33.000+0100},
title = {Radiative neutron captures by neutron-rich nuclei and the r-process nucleosynthesis},
url = {http://www.sciencedirect.com/science/article/B6TVN-3VWNJPX-20/1/f14cc9032157d6921fa995afa84e5964},
volume = 436,
year = 1998
}