Determination of the neutron-capture rate of C-17 for r-process nucleosynthesis

R3B Collaboration

OnderzoeksoutputAcademicpeer review

6 Citaten (Scopus)

Samenvatting

With the (RB)-B-3-LAND setup at GSI we have measured exclusive relative-energy spectra of the Coulomb dissociation of C-18 at a projectile energy around 425A MeV on a lead target, which are needed to determine the radiative neutron-capture cross sections of C-17 into the ground state of C-18. Those data have been used to constrain theoretical calculations for transitions populating excited states in C-18. This allowed to derive the astrophysical cross section sigma(n gamma)*. accounting for the thermal population of C-17 target states in astrophysical scenarios. The experimentally verified capture rate is significantly lower than those of previously obtained Hauser-Feshbach estimations at temperatures T-9

Originele taal-2English
Artikelnummer014613
Aantal pagina's9
TijdschriftPhysical Review C
Volume95
Nummer van het tijdschrift1
DOI's
StatusPublished - 30-jan-2017

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