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

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

An unexpected enhancement in the low-energy part of the gamma -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...

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Veröffentlicht in:EPJ Web of conferences 2014-01, Vol.66, p.7014-1-07014-4
Hauptverfasser: Larsen, A. C., Blasi, N., Bracco, A., Bürger, A., Camera, F., Eriksen, T.K., Giacoppo, F., Goriely, S., Guttormsen, M., Görgen, A., Hagen, T. W., Harissopulos, S., Koehler, P. E., Leoni, S., Million, B., Nyhus, H.T., Renstrøm, T.T., Rose, S., Ruud, I.E., Schiller, A., Siem, S., Tornyi, T., Tveten, G. M., Voinov, A. V., Wiedeking, M.
Format: Artikel
Sprache:eng
Schlagworte:
Capture (nuclear)
Cyclotrons
Low energy
Nuclei
Reactions (nuclear)
Strength
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Zusammenfassung:An unexpected enhancement in the low-energy part of the gamma -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.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/20146607014