Direct Measurement of the Astrophysical Reaction 14O (α,p)17F

Details Direct Measurement of the Astrophysical Reaction 14O (α,p)17F Direct Measurement of the Astrophysical Reaction 14O (α,p)17F

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005omeg.conf..354n&link_type=abstract

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2003. Held 17-19 November 2003 in RIKEN, Wako, Saitama, Japan. Edited by M Terasawa,

Astronomy and Astrophysics

Astronomy

Scientific paper

The stellar reaction 14O(α,p)17F, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive 14O beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured by means of a thick target technique in the energy range of Ec.m.(14O+α) = 0.8-3.8 MeV. The 14O(α,p)17F* reaction leading to the first excited state in 17F was identified for the first time, suggesting an increase of about 50% for the stellar reaction rate through resonances at around 7.1 MeV in 18Ne

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