Measurement of the neutron capture rate of the (C-12)(n,gamma)(C-13) reaction at stellar energy

Details Measurement of the neutron capture rate of the (C-12)(n,gamma)(C-13) reaction at stellar energy Measurement of the neutron capture rate of the (C-12)(n,gamma)(C-13) reaction at stellar energy

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..683n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 10, 1991, p. 683-687.

Astronomy and Astrophysics

Astrophysics

39

Big Bang Cosmology, Carbon Isotopes, Cosmic Plasma, Cosmochemistry, Neutrons, Trapped Particles, Baryons, Reaction Kinetics, Stellar Evolution, Supernovae, Thermal Neutrons

Scientific paper

The reaction (C-12)(u,gamma)(C-13) at stellar energy plays important roles in the nucleosynthesis of intermediate-mass nuclei in inhomogeneous big bang models and in that of heavy elements during stellar evolution. In the present study, the reaction rate was measured by detecting gamma-rays emitted from a captured state; 16.8 + or - 2.1 microbarn was obtained, about 5 times larger than the estimated value from the thermal-neutron capture cross section. The present result favors the nucleosynthesis of intermediate-mass nuclei in inhomogeneous big bang models and also of heavy elements in exploding supernovae.

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