Preliminary results for the F-19(p,alpha)O-16 reaction cross section measured at INFN-LNS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00540676" target="_blank" >RIV/61389005:_____/20:00540676 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjconf/202022702009" target="_blank" >http://dx.doi.org/10.1051/epjconf/202022702009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/202022702009" target="_blank" >10.1051/epjconf/202022702009</a>
Alternative languages
Result language
angličtina
Original language name
Preliminary results for the F-19(p,alpha)O-16 reaction cross section measured at INFN-LNS
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. At present, theoretical models overproduce F abundances in AGB stars with respect to the observed values, thus calling for further investigation of the nuclear reaction rates involved in the production and destruction of fluorine. In the last years, new direct and indirect measurements improved significantly the knowledge of F-19(p,alpha)O-16 cross section at deeply sub-Coulomb energies (below 0.8 MeV). However, those data are larger by a factor of 1.4 with respect the previous data reported in the NACRE compilation in the energy region 0.6-0.8 MeV. Using the Large High resolution Array of Silicons for Astrophysics (LHASA), we performed a new direct measurement of the F-19(p,alpha)O-16. The goal of this experiment is to reduce the uncertainties in the nuclear reaction rate of the F-19(p,alpha)O-16 reaction. Here, experimental details, the calibration procedure and angular distributions are presented.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
EPJ Web of Conferences
ISBN
978-2-7598-9096-5
ISSN
2100-014X
e-ISSN
—
Number of pages
6
Pages from-to
02009
Publisher name
EDP Sciences
Place of publication
Les Ulis
Event location
Catania
Event date
Jun 16, 2019
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000618965400028