Astrophysical reaction rate for F-17(p,gamma)Ne-18 from the transfer reaction C-13(O-17,O-18)C-12

作者：Al Abdullah T^*; Carstoiu F; Chen X; Clark H L; Gagliardi C A; Lui Y W; Mukhamedzhanov A; Tabacaru G; Tokimoto Y; Trache L; Tribble R E; Zhai Y

来源：Physical Review C, 2014, 89(2): 025809.

DOI：10.1103/PhysRevC.89.025809

The asymptotic normalization coefficients of the bound states J(pi) = (0(1)(+),2(1)(+),4(1)(+),2(2)(+)) in O-18 are extracted from the peripheral neutron transfer reaction C-13(O-17, O-18)C-12. They are then converted to their mirror states in Ne-18, which are further used to evaluate the astrophysical S factor for the proton capture reaction F-17(p,gamma) Ne-18. The elastic-scattering cross sections have been measured in both incoming and outgoing channels in order to extract the optical potentials needed for distorted-wave-Born-approximation calculations. The S factor is found to be S1- 17(0) = 2.17 +/- 0.37 keV b. The contribution of the direct capture rate to this reaction is estimated, and its consequences on the production of F-18 at stellar energies in ONe novae are discussed.

• 出版日期2014-2-26