Extrapolation of astrophysical S factors for the reaction 14N((p, γ) 15O to near-zero energies

Autor:	Q. I. Tursunmakhatov, S. B. Igamov, R. Yarmukhamedov, S. V. Artemov
Rok vydání:	2012
Předmět:	Physics Reaction rate Nuclear and High Energy Physics S-factor Helium-3 Atomic nucleus Bound state Extrapolation Radiative transfer Atomic physics Atomic and Molecular Physics and Optics R-matrix
Zdroj:	Physics of Atomic Nuclei. 75:291-309
ISSN:	1562-692X 1063-7788
DOI:	10.1134/s1063778812020032
Popis:	The astrophysical S factors for the radiative-capture reaction 14N(p, γ)15O in the region of ultralow energies were calculated on the basis of the R-matrix approach. The values of the radiative and protonic widths were fitted to new experimental data. The contribution of direct radiative capture to bound states of the 15O nucleus was determined with the aid of asymptotic normalization coefficients, whose values were refined in the present study on the basis of the results obtained from an analysis of the reaction 14N(3He, d)15O at three different energies of incident helium ions. A value of S(0) = 1.79 ± 0.31 keV b was obtained for the total astrophysical S factor, and the reaction rate was determined for the process 14N(p, γ)15O.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57251b22f3fb4eb3c4369f2ef529457b https://doi.org/10.1134/s1063778812020032 Zobrazit plný text záznamu Plný text ve formátu PDF