18O(p, γ)19F and 23Na(p,γ)24Mg are reactions of astrophysical interest for example in AGB star scenarios. The rates of both reactions are potentially influenced by low-energy resonances for whose strengths either exist only values with large uncertainties, upper limits or even contradictory claims. Measurements at the Laboratory for Underground Nuclear Astrophysics (LUNA) aim at a direct observation of these low-energy resonances, and additional cross section measurements to aid a more precise determination of the reaction rates in astrophysical scenarios. We report the experimental setup and the status of the ongoing measurements of the two reactions at LUNA.
Status of the direct measurements of18O(p,γ)19F and23Na(p,γ)24Mg cross sections at astrophysical energies at LUNA / Boeltzig, A.; Pantaleo, F. R.; Best, A.; Imbriani, G.; Junker, M.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 703:1(2016), p. 012014. [10.1088/1742-6596/703/1/012014]
Status of the direct measurements of18O(p,γ)19F and23Na(p,γ)24Mg cross sections at astrophysical energies at LUNA
Best, A.;Imbriani, G.;
2016
Abstract
18O(p, γ)19F and 23Na(p,γ)24Mg are reactions of astrophysical interest for example in AGB star scenarios. The rates of both reactions are potentially influenced by low-energy resonances for whose strengths either exist only values with large uncertainties, upper limits or even contradictory claims. Measurements at the Laboratory for Underground Nuclear Astrophysics (LUNA) aim at a direct observation of these low-energy resonances, and additional cross section measurements to aid a more precise determination of the reaction rates in astrophysical scenarios. We report the experimental setup and the status of the ongoing measurements of the two reactions at LUNA.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
