The C-14(n,gamma)C-15 reaction plays an important role in inhomogeneous big bang models. In Timofeyuk et al. [Phys. Rev. Lett. 96, 162501 (2006)] it was shown that the C-14(n,gamma)C-15 radiative capture at astrophysically relevant energies is a peripheral reaction, i.e., the overall normalization of its cross section is determined by the asymptotic normalization coefficient (ANC) for C-15 -> C-14 + n. Here we present new measurements of the C-14(d,p)C-15 differential cross sections at deuteron incident energy of 17.06 MeV and the analysis to determine the ANCs for neutron removal from the ground and first excited states of C-15. The results are compared with previous estimations.
Asymptotic normalization coefficients from the C-14(d,p)C-15 reaction
ROMANO, Stefano;Sergi ML;
2011-01-01
Abstract
The C-14(n,gamma)C-15 reaction plays an important role in inhomogeneous big bang models. In Timofeyuk et al. [Phys. Rev. Lett. 96, 162501 (2006)] it was shown that the C-14(n,gamma)C-15 radiative capture at astrophysically relevant energies is a peripheral reaction, i.e., the overall normalization of its cross section is determined by the asymptotic normalization coefficient (ANC) for C-15 -> C-14 + n. Here we present new measurements of the C-14(d,p)C-15 differential cross sections at deuteron incident energy of 17.06 MeV and the analysis to determine the ANCs for neutron removal from the ground and first excited states of C-15. The results are compared with previous estimations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
