https://doi.org/10.1051/epjconf/201716501040
Direct cross section measurement for the 18O(p,γ)19F reaction at astrophysical energies at LUNA
1 Universita’ degli Studi di Bari, Dipartimento Interateneo di Fisica "M. Merlin", Bari, Italy
2 Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Bari, Italy
3 Universita’ degli Studi di Napoli, Dipartimento di Fisica "E. Pancini", Napoli, Italy
4 Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Italy
* e-mail: francesca.pantaleo@ba.infn.it
Published online: 30 December 2017
18O(p, γ)19F plays an important role in the AGB star scenarios. The low energy cross section could be influenced by a hypothetical low energy resonance at 95 keV and by the tails of the higher energy broad states. The 95 keV resonance lies in the energy window corresponding to the relevant stellar temperature range of 40-50 MK.
Measurements of the direct cross section were performed at the Laboratory for Underground Nuclear Astrophysics (LUNA), including the unobserved low energy resonance, the higher energy resonances and the non-resonant component, taking advantage of the extremely low environmental background. Here we report on the experimental setup and the status of the analysis.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
