Astrophysical S factor for the radiative capture 12Np,gamma13O determined from the 14N12N,13O13C proton transfer reaction - Nuclear ExperimentReport as inadecuate




Astrophysical S factor for the radiative capture 12Np,gamma13O determined from the 14N12N,13O13C proton transfer reaction - Nuclear Experiment - Download this document for free, or read online. Document in PDF available to download.

Abstract: The cross section of the radiative proton capture reaction on the drip linenucleus 12N was investigated using the Asymptotic Normalization CoefficientANC method.
We have used the 14N12N,13O13C proton transfer reaction at 12MeV-nucleon to extract the ANC for 13O -> 12N + p and calculate from it thedirect component of the astrophysical S factor of the 12Np,gamma13O reaction.The optical potentials used and the DWBA analysis of the proton transferreaction are discussed.
For the entrance channel, the optical potential wasinferred from an elastic scattering measurement carried out at the same timewith the transfer measurement.
From the transfer, we determined the square ofthe ANC, C^213Og.s.
= 2.53 +- 0.30 fm-1, and hence a value of 0.334 keVbwas obtained for the direct astrophysical S factor at zero energy.
Constructiveinterference at low energies between the direct and resonant captures leads toan enhancement of Stotal0 = 0.425 keVb.
The 12Np,gamma13O reaction wasinvestigated in relation to the evolution of hydrogen-rich massive PopulationIII stars, for the role that it may play in the hot pp-chain nuclear burningprocesses, possibly occurring in such objects.



Author: A.
Banu, T.
Al-Abdullah, C.
Fu, C.
A.
Gagliardi, M.
McCleskey, A.
M.
Mukhamedzhanov, G.
Tabacaru, L.
Trache, R.
E.
Tribble, Y.
Zh


Source: https://arxiv.org/



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