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New high accuracy measurement of theO17(p,α)N14reaction rate at astrophysical temperatures

Authors :
V. Crucillà
M. La Cognata
Salvatore Tudisco
V. Kroha
Gabor Kiss
A. M. Mukhamedzhanov
B. F. Irgaziev
Fairouz Hammache
Silvio Cherubini
G. G. Rapisarda
A. Coc
Marisa Gulino
R. G. Pizzone
N. de Séréville
Z. Hons
Livio Lamia
M. L. Sergi
Aurora Tumino
C. Spitaleri
S. Romano
E. Somorjai
S. M. R. Puglia
S. V. Burjan
Source :
Physical Review C. 82
Publication Year :
2010
Publisher :
American Physical Society (APS), 2010.

Abstract

The {sup 17}O(p,{alpha}){sup 14}N reaction is of fundamental relevance in several astrophysical scenarios, such as novae, asymptotic giant branch nucleosynthesis, and {gamma}-ray astronomy. We report on the indirect measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction bare-nucleus cross section in the low-energy region. In particular, the two resonances at E{sub R}{sup c.m.}=65 keV and E{sub R}{sup c.m.}=183 keV, which dominate the reaction rate inside the Gamow window, have been observed, and the strength of the 65 keV resonance has been deduced. The reaction rate determination and the comparison with the results of the previous measurements are also discussed.

Details

ISSN :
1089490X and 05562813
Volume :
82
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi...........fdb395c8925a4f083b7fa134df08a51f
Full Text :
https://doi.org/10.1103/physrevc.82.032801