Suppression of the stellar enhancement factor and the reaction Rb-85(p, n)Sr-85

Rauscher, T.; Kiss, G. G.; Gyuerky, Gy.; Simon, A.; Fueloep, Zs.; Somorjai, E.

Suppression of the stellar enhancement factor and the reaction Rb-85(p, n)Sr-85

Rauscher, T., Kiss, G. G., Gyuerky, Gy., Simon, A., Fueloep, Zs. and Somorjai, E. (2009) Suppression of the stellar enhancement factor and the reaction Rb-85(p, n)Sr-85. Physical Review C (nuclear physics), 80 (3): 035801. ISSN 2469-9985

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It is shown that a Coulomb suppression of the stellar enhancement factor occurs in many endothermic reactions at and far from stability. Contrary to common assumptions, reaction measurements for astrophysics with minimal impact of stellar enhancement should be preferably performed for those reactions instead of their reverses, despite of their negative Q value. As a demonstration, the cross section of the astrophysically relevant Rb-85(p, n)Sr-85 reaction has been measured by activation between 2.16

Item Type	Article
Identification Number	10.1103/PhysRevC.80.035801
Keywords	statistical-model calculations, r-process, process nucleosynthesis, density, astrophysical reaction-rates, physics, finite nuclei, p-process, hard-core interaction, temperature
Date Deposited	15 May 2025 12:35
Last Modified	11 Apr 2026 01:08