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Measurement of sub threshold resonance contributions to fusion reactions: the case of the13C(α, n)16O astrophysical neutron source
2015
EPJ Web of Conferences
The 13 C(α, n) 16 O reaction is the neutron source for the main component of the s-process. It is is active inside the helium-burning shell of asymptotic giant branch stars, at temperatures 10 8 K. In this temperature region, corresponding to an energy interval of 140 − 230 keV, the 13 C(α, n) 16 O cross section is dominated by the −3 keV sub-threshold resonance due to the 6.356 MeV level in 17 O. Direct measurements could not establish its contribution owing to the Coulomb barrier between
doi:10.1051/epjconf/20158600023
fatcat:ibjai6zcb5dklevrocsqozk4eu