Boron plays an important role in astrophysics and, together with lithium and beryllium, is a probe of stellar structure during the pre-main sequence and main-sequence phases. In this context, the 10B(p,α)7 Be reaction is of particular interest. The literature data show discrepancies in the energy range between 100 keV and 2 MeV. This also poses a normalization problem for indirect data obtained with the Trojan Horse Method. A new measurement of the 10B(p,α)7 Be reaction cross section was performed at Legnaro National Laboratories (LNL). At LNL, the cross section was determined with the activation technique by measuring the activated samples at a low-background counting facility. The analysis of that experiment is now complete and the results are here presented.
New direct measurement of the B-10(p,alpha)Be-7 reaction with the activation technique / R. Depalo, A. Caciolli, C. Broggini, M. La Cognata, L. Lamia, R. Menegazzo, L. Mou, S.M.R. Puglia, V. Rigato, S. Romano, C.R. Alvarez, M.L. Sergi, C. Spitaleri, A. Tumino - In: Nuclear Physics in Astrophysics VIII (NPA8 2017) / [a cura di] M. La Cognata. - [s.l] : EDP Sciences, 2017. - ISBN 978-2-7598-9030-9. - pp. 1-4 (( Intervento presentato al 8. convegno International Conference on Nuclear Physics in Astrophysics, NPA8 2017 tenutosi a Catania nel 2017 [10.1051/epjconf/201716501021].
New direct measurement of the B-10(p,alpha)Be-7 reaction with the activation technique
R. Depalo;
2017
Abstract
Boron plays an important role in astrophysics and, together with lithium and beryllium, is a probe of stellar structure during the pre-main sequence and main-sequence phases. In this context, the 10B(p,α)7 Be reaction is of particular interest. The literature data show discrepancies in the energy range between 100 keV and 2 MeV. This also poses a normalization problem for indirect data obtained with the Trojan Horse Method. A new measurement of the 10B(p,α)7 Be reaction cross section was performed at Legnaro National Laboratories (LNL). At LNL, the cross section was determined with the activation technique by measuring the activated samples at a low-background counting facility. The analysis of that experiment is now complete and the results are here presented.
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