Study of the quasi-free He-3 + Be-9 -> 3 alpha reaction for the Trojan Horse Method

0523757 - ÚJF 2021 RIV US eng J - Journal Article
Spitaleri, C. - Lattuada, M. - Cvetinovc, A. - Soic, N. - Milin, M. - Colovic, P. - D'Agata, Giuseppe - Dell'Aquila, D. - Guardo, G. L. - Gulino, M. - Trippella, O. - La Cognata, M. - Lamia, L. - Lattuada, D. - Li, C. B. - Messina, S. - Nurkic, D. - Perrotta, S. - Pizzone, R. G. - Popoconski, R. - Romano, S. - Skukan, N. - Sparta, R. - Szilner, S. - Uroic, M. - Vukman, N.
Study of the quasi-free He-3 + Be-9 -> 3 alpha reaction for the Trojan Horse Method.
European Physical Journal A. Roč. 56, č. 1 (2020), č. článku 18. ISSN 1434-6001. E-ISSN 1434-601X
Institutional support: RVO:61389005
Keywords : Trojan Horse Method * He * Be
OECD category: Nuclear physics
Impact factor: 3.043, year: 2020
Method of publishing: Limited access
https://doi.org/10.1140/epja/s10050-020-00026-x

A new study of the quasi-free contribution to the 3He+9Be -> 3 alpha reaction (Q value = 19.004 MeV) at low E3He energy is presented. The reaction was studied in a kinematically complete experiment at beam energy of 4 MeV. To clarify the presence of the quasi-free mechanism, the 4He-5He momentum distribution of the 9Be ground state was extracted. Standard tests were also carried out to confirm the presence of the quasi-free contribution and are reported in this work. The full width at half maximum of the 4He-5He inter-cluster momentum distribution inside 9Be was measured with improved accuracy, by adopting several different approaches that all led to consistent results. These preliminary investigations on the reaction mechanism are fundamental for future studies employing the Trojan Horse Method, with the 5He unbound nucleus as a virtual projectile.
Permanent Link: http://hdl.handle.net/11104/0308054