Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1269..469s&link_type=abstract
THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG-2010. AIP Conference Proceedings, Volume 1
Astronomy and Astrophysics
Astronomy
Alpha Particle-Nucleus Reactions, Nucleosynthesis, X-Ray Sources (Astronomical), Gamma-Rays, Scintillators, Charge-Exchange Reactions, Cosmic Ray Nucleosynthesis, X-Ray Sources, X-Ray Bursts, Gamma-Ray, Scintillation Detectors
Scientific paper
The 16O(γ, 2α)4He reaction cross section was measured in the γ-ray energy range from 16 MeV up to 39 MeV using an active target method and a quasi-monochromatic γ-ray beam provided at the Laboratory of Advanced Science and Technology for Industry (LASTI) of the University of Hyogo. The cross section is found to be rather small in the energy region corresponding to the 2+ and 4+ excited states of the intermediate 8Be nucleus, while it becomes large above the energy corresponding to the 8Be 1- state, being in contrast to the latest result reported by Afanas'ev and Khodyachikh. The present result suggests the cross sections are dominated by the contributions of the 1- states in 12C which are excited with the E1 transition.
Akimune Hidetoshi
Amano Sou
Horikawa Ken
Miyamoto Shuji
Mochizuki Takayasu
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