Investigation of the F-19(p,alpha)O-16 reaction in the THM framework

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F13%3A00398992" target="_blank" >RIV/61389005:_____/13:00398992 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/420/1/012139" target="_blank" >http://dx.doi.org/10.1088/1742-6596/420/1/012139</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/420/1/012139" target="_blank" >10.1088/1742-6596/420/1/012139</a>

Result language
angličtina
Original language name
Investigation of the F-19(p,alpha)O-16 reaction in the THM framework
Original language description
The F-19(p, alpha)O-16 reaction is an important fluorine destruction channel in the proton-rich outer layers of asymptotic giant branch (AGB) stars and it might also play a role in hydrogen-deficient post-AGB star nucleosynthesis. So far, available direct measurements do not reach the energy region of astrophysical interest (E-cm similar to 300 keV), because of the hindrance effect of the Coulomb barrier. Therefore, below Ecm = 460 keV, where data do not exist, a non-resonant contribution is calculatedfor s-capture and the cross section has been extrapolated assuming this contribution as the dominant one. The Trojan Horse (TH) method was thus used to access this energy region, by extracting the quasi-free contribution of the H-2(F-19,alpha O-16)n andthe F-19(He-2,alpha O-16)d reactions. A novel approach, the so-called Modified R-matrix, has been developed to analyze the data, aiming to account for the half-off-energy-shell nature of the TH cross section and for the experimental energ
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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