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The reaction sequence of 3He(α,γ)7Be(α,γ)11C(p,γ)12N to CNO could be an alterative way of 3α →12C to convert 3He into CNO. It may become important in some specific environments, such as in a very massive star with low metallicity. Whether it is significant depends on the reactions involved, one of the important reactions is the 11C p-capture competing with its β + decay. The S factor for the 11C(p,γ)12N direct capture was obtained in our previous work. This work is to update the reaction rate by adding uncertainty and fitting with the Thielemann format. With the new rate, nucleosynthesis simulations are performed to study the bridge of the p-p chains to CNO through the above sequence. [Copyright &y& Elsevier]

The evolution of massive stars with very low-metallicities depends critically on the amount of CNO nuclides which they produce. The 12N(p, γ)130 reaction is an important branching point in the rap processes, which are believed to be alternative paths to the slow 3a process for producing CNO seed nuclei and thus could change the fate of massive stars. In the present work, the angular distribution of the 2H(12N, 130)n proton transfer reaction at Ec.m. = 8.4 MeV has been measured for the first time. Based on the Johnson-Soper approach, the square of the asymptotic normalization coefficient (ANC) for the virtual decay of 13Og s. --> 12N 4- p was extracted to be 3.92 ± 1.47 fm-' from the measured angular distribution and utilized to compute the direct component in the 12N(p, γ)130 reaction. The direct astrophysical S factor at zero energy was then found to be 0.39 ±0.15 keV b. By considering the direct capture into the ground state of 130, the resonant capture via the first excited state of 130 and their interference, we determined the total astrophysical S factors and rates of the 12N(p, γ130 reaction. The new rate is two orders of magnitude slower than that from the REACLIB compilation. Our reaction network calculations with the present rate imply that 12N(p, γ)130 will only compete successfully with the ß+ decay of 12N at higher (~2 orders of magnitude) densities than initially predicted. [ABSTRACT FROM AUTHOR]