Two effects relevant for the study of astrophysical reaction rates: {gamma} transitions in capture reactions and Coulomb suppression of the stellar enhancement

Journal Article · Wed Jan 28 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3087071· OSTI ID:21255466

Rauscher, Thomas ^[1]

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1. Departement Physik, Universitaet Basel, CH-4056 Basel (Switzerland)

Nucleosynthesis processes involve reactions on several thousand nuclei, both close to and far off stability. The preparation of reaction rates to be used in astrophysical investigations requires experimental and theoretical input. In this context, two interesting aspects are discussed: (i) the relevant {gamma} transition energies in astrophysical capture reactions, and (ii) the newly discovered Coulomb suppression of the stellar enhancement factor. The latter makes a number of reactions with negative Q value more favorable for experimental investigation than their inverse reactions, contrary to common belief.

• OSTI ID: 21255466
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1090; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASTROPHYSICS
CAPTURE
GAMMA ASTRONOMY
NUCLEAR REACTIONS
NUCLEOSYNTHESIS
Q-VALUE
REACTION KINETICS