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EnglishThe F(p) O reaction is an important channel of fluorine destruction in H-rich environments as the outer layers of Asymptotic Giant Branch (AGB) stars. Measurements of the F(p) O reaction via the Trojan Horse Method (THM) have shown the presence of resonant structures not observed before. As a consequence, the reaction rate at astrophysical temperatures (about K) exceeds up to a factor 1.7 the one previously adopted. Here we present the result of an experiment in which THM was used to extract the Quasi-Free (QF) contribution of the H(FO)n reaction to the F(p) O channel, corresponding to the population of the first excited state of the O. Three resonances in the E energy region below about 500 keV have been observed. This result hints to an enhancement of the F(p, O destruction rate, with respect to what presently predicted.
| Titolo: | First Time Measurement of the 19F(p,x1) 16O Reaction at Astrophysical Energies: Evidence of Resonances Through the Application of the Trojan Horse Method | |
| Autori interni: | ||
| Data di pubblicazione: | 2019 | |
| Serie: | ||
| Handle: | http://hdl.handle.net/20.500.11769/373024 | |
| ISBN: | 978-3-030-13875-2 978-3-030-13876-9 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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