https://doi.org/10.1140/epja/s10050-020-00026-x
Regular Article - Experimental Physics
Study of the quasi-free
reaction for the Trojan Horse Method
1
INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, 95123, Catania, Italy
2
Dipartimento di Fisica e Astronomia “Ettore Majorana”, Universitá degli Studi di Catania, Via S. Sofia 64, 95123, Catania, Italy
3
Rudjer Bošković Institute, Zagreb, Croatia
4
Nuclear Physics Institute, Czech Academy of Sciences, 25068, Rez, Czech Republic
5
Facoltá di Ingegneria e Architettura, Universitá degli Studi di Enna “Kore”, 94100, Enna, Italy
6
INFN-Sezione di Perugia, Perugia, Italy
7
Radiation Center, China and Beijing Academic of Science and Rechnology, Beijing, China
* e-mail: spitaleri@lns.infn.it
Received:
8
July
2019
Accepted:
23
November
2019
Published online:
23
January
2020
A new study of the quasi-free contribution to the reaction (Q value = 19.004 MeV) at low
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
–
momentum distribution of the
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
–
inter-cluster momentum distribution inside
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
unbound nucleus as a virtual projectile.
© Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature, 2020