Direct capture contribution to the 11C(p,γ)12N reaction at astrophysical energies Original Research Article

The contribution of the direct mechanism to the View the MathML sourceN capture reaction at astrophysically relevant energies is calculated using the overlap integral View the MathML source and the p–11C local effective potential obtained within a microscopic approach. This approach is based on the solution of the inhomogeneous differential equation with the source term calculated within the translation-invariant 0ℏω shell model. The calculations resulted in a zero-energy astrophysical S-factor S(0) equal to 0.149 keV b. This value was obtained with the two-body effective NN potential, which gives the asymptotic normalization coefficient (ANC) for mirror nucleus 12B close to the available experimental value. A separate estimation of S(0) based on the ratio of mirror ANCs gave View the MathML source keV b. This value is about three times larger than the one obtained from the Coulomb breakup of 12N.