Capture reactions on C-14 in nonstandard big bang nucleosynthesis

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169348· OSTI ID:6230698

Wiescher, M; Gorres, J; Thielemann, F ^[1]

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1. Notre Dame Univ., IN (USA) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)

Nonstandard big bang nucleosynthesis leads to the production of C-14. The further reaction path depends on the depletion of C-14 by either photon, alpha, or neutron capture reactions. The nucleus C-14 is of particular importance in these scenarios because it forms a bottleneck for the production of heavier nuclei A greater than 14. The reaction rates of all three capture reactions at big bang conditions are discussed, and it is shown that the resulting reaction path, leading to the production of heavier elements, is dominated by the (p, gamma) and (n, gamma) rates, contrary to earlier suggestions. 24 refs.

• OSTI ID: 6230698
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 363; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALPHA PARTICLES
ASTROPHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CAPTURE
CARBON 14
CARBON ISOTOPES
CHARGED PARTICLES
COSMOLOGY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MASSLESS PARTICLES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUCLEOSYNTHESIS
PHOTONS
RADIOISOTOPES
SYNTHESIS
UNIVERSE
YEARS LIVING RADIOISOTOPES