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Cherubini S.,University of Catania | Kubono S.,University of Tokyo | Spitaleri C.,University of Catania | Binh D.N.,University of Tokyo | And 25 more authors.
AIP Conference Proceedings | Year: 2010

The use of quasifree reactions in studying nuclear reactions between charged particles of astrophysical interest has received much attention over the last two decades. The Trojan Horse Method is based on this approach and it has been used to study a number of reactions relevant for Nuclear Astrophysics. Recently we applied this method to the study of nuclear reactions that involve radioactive species, namely to the study of the 18F+p→ 15O+α? process at temperatures corresponding to the energies available in the classical novae scenario. Quasifree reactions can also be exploited to study processes induced by neutrons. This technique is particularly interesting when applied to reaction induced by neutrons on unstable shortlived nuclei. Such processes are very important in the nucleosynthesis of elements in the sand rprocesses scenarios and this technique can give hints for solving key questions in nuclear astrophysics where direct measurements are practically impossible. © 2010 American Institute of Physics.

Gulino M.,National Institute of Nuclear Physics, Italy | Gulino M.,University of Catania | Spitaleri C.,National Institute of Nuclear Physics, Italy | Spitaleri C.,University of Catania | And 22 more authors.
Journal of Physics G: Nuclear and Particle Physics | Year: 2010

The quasi-free break-up of deuteron was used to study the neutron-induced 6Li + n reaction via the 2H(6Li, α3H)p. The aim of the experiment was to check whether the deuteron can be considered as a source of virtual neutrons. This was done by studying the excitation function of the 6Li(n, α)3H two-body reaction at low energy where the resonance corresponding to the excited level at 7.454MeV of 7Li is present. Two experimental runs were performed at the Laboratori Nazionali del Sud (LNS) in Catania, Italy. In both experiments, the energy and the position of the outgoing a and 3H particles were measured and the kinematics were reconstructed assuming a proton as the third particle. The quasi-free events were selected in order to reconstruct the 6Li(n, α)3H cross section in the center-of-mass energy by using the plane wave impulse approximation approach. The obtained cross section is in very good agreement with the directly measured one. © 2010 IOP Publishing Ltd.

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