Low-energy enhancement of nuclear γ strength and its impact on astrophysical reaction rates

Author
Larsen, Ann-Cecilie
Blasi, Nives
Bracco, Angela
Bürger, Arnold
Camera, Franco
Eriksen, Tomas Kvalheim
Giacoppo, Francesca
Goriely, Stephan
Guttormsen, Magne Sveen
Görgen, Andreas
Hagen, Trine Wiborg
Harissopulos, Sotirios
Koehler, Paul Edward
Leoni, Silvia
Million, Bénédicte
Nyhus, Hilde-Therese
Renstrøm, Therese
Rose, Sunniva Johanne
Ruud, Inger Eli
Schiller, Andreas Ulrich
Siem, Sunniva
Tornyi, Tamas Gabor
Tveten, Gry Merete
Voinov, Alexander
Wiedeking, Mathis
Date Issued
2014
Permalink
http://hdl.handle.net/20.500.12242/674
https://publications.ffi.no/123456789/674
DOI
10.1051/epjconf/20146607014
Collection
Articles
Description
Larsen, Ann-Cecilie; Blasi, Nives; Bracco, Angela; Bürger, Arnold; Camera, Franco; Eriksen, Tomas Kvalheim; Giacoppo, Francesca; Goriely, Stephan; Guttormsen, Magne Sveen; Görgen, Andreas; Hagen, Trine Wiborg; Harissopulos, Sotirios; Koehler, Paul Edward; Leoni, Silvia; Million, Bénédicte; Nyhus, Hilde-Therese; Renstrøm, Therese; Rose, Sunniva Johanne; Ruud, Inger Eli; Schiller, Andreas Ulrich; Siem, Sunniva; Tornyi, Tamas Gabor; Tveten, Gry Merete; Voinov, Alexander; Wiedeking, Mathis. Low-energy enhancement of nuclear γ strength and its impact on astrophysical reaction rates. The European Physical Journal Conferences 2014 ;Volum 66:07014.
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Abstract
An unexpected enhancement in the low-energy part of the γ-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture rates up to two orders of magnitude for very exotic, neutron-rich nuclei. However, it is still an open question whether this structure persists when approaching the neutron drip line.
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