The astrophysical S(E) factor of N-14(p,gamma)O-15 has been measured for effective center-of-mass energies between E-eff = 119 and 367 keV at the LUNA facility using TiN solid targets and Ge detectors. The data are in good agreement with previous and recent work at overlapping energies. R-matrix analysis reveals that due to the complex level structure of O-15 the extrapolated S(0) value is model dependent and calls for additional experimental efforts to reduce the present uncertainty in S(0) to a level of a few percent as required by astrophysical calculations.
|Titolo:||S-factor of N-14(p, gamma)O-15 at astrophysical energies|
|Parole Chiave:||GLOBULAR-CLUSTERS; N-14(P,GAMMA)O-15; ACCELERATOR; FACILITY; AGE|
|Settore Scientifico Disciplinare:||Settore FIS/04 - Fisica Nucleare e Subnucleare|
|Data di pubblicazione:||2005|
|Digital Object Identifier (DOI):||10.1140/epja/i2005-10138-7|
|Appare nelle tipologie:||01 - Articolo su periodico|