Astrophysical S factor for the N-15(p,gamma)O-16 reaction

0360093 - ÚJF 2012 RIV US eng J - Článek v odborném periodiku
Mukhamedzhanov, A. M. - La Cognata, M. - Kroha, Václav
Astrophysical S factor for the N-15(p,gamma)O-16 reaction.
Physical Review. C. Roč. 83, č. 4 (2011), 044604/1-044604/10. ISSN 0556-2813
Grant CEP: GA ČR GAP203/10/0310; GA MŠMT LC07050
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: R-MATRIX THEORY * STELLAR ENERGIES * PROTON CAPTURE
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 3.308, rok: 2011

The R-matrix approach has proved to be very useful in extrapolating the astrophysical factor down to astrophysically relevant energies, since the majority of measurements are not available in this region. However, such an approach has to be critically considered when no complete knowledge of the reaction model is available. To get reliable results in such cases one has to use all the available information from independent sources and, accordingly, fix or constrain variations of the parameters. In this paper we present a thorough R-matrix analysis of the N-15(p,gamma)O-16 reaction, which provides a path from the CN cycle to the CNO bi-cycle and CNO tri-cycle.
Trvalý link: http://hdl.handle.net/11104/0197728