Astrophysical S factor for C-13(p,gamma)N-14 and asymptotic normalization coefficients
Loading...
Date
2002
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
We reanalyze the C-13(p,gamma)N-14 radiative capture reaction within the R-matrix approach. The low-energy astrophysical S factor has important contributions from both resonant and onresonant captures. The normalization of the nonresonant component of the transition to a particular N-14 bound state is expressed in terms of the asymptotic normalization coefficient (ANC). In the analysis we use the experimental ANC's inferred from the C-13(N-14,C-13)N-14 and C-13(He-3,d)N-14 reactions. The fits of the calculated S factors to the experimental data are sensitive to the ANC values and are used to test the extracted ANC's. We find that for transitions to all the states in N-14, except the third excited state, the ANC's determined from the transfer reactions provide the best fit. The astrophysical factor we obtain, S(0)=7.7+/-1.1 keV b, is in excellent agreement with previous results.
Description
Journals published by the American Physical Society can be found at http://publish.aps.org/
Keywords
THERMONUCLEAR REACTION-RATES, Physics
Citation
A. M. Mukhamedzhanov, A. Azhari, V. Burjan, Carl A. Gagliardi, V. Kroha, A. Sattarov, X. Tang, L. Trache and Robert E. Tribble. Phys.Rev.C 66 027602 2002. "Copyright (2002) by the American Physical Society."