The 0(2)(+) Hoyle state and few other excited levels of C-12 are fundamental for the production of carbon in the universe. In particular, the gamma decay branching ratio is of utmost importance, being the only way to produce a carbon at the ground state. For the purpose to precisely investigate the decay mechanism of such states we conducted an experiment, at Laboratori Nazionali del Sud-Istituto Nazionale di Fisica Nucleare (INFN-LNS), using the reaction alpha + C-12 at 64 MeV. We used the 4 pi CHIMERA detector to detect both alpha and gamma C-12 decay channels. Details of the experiment and preliminary results are discussed in the paper.
The gamma decay of the Hoyle and higher excitation energy states of C-12 / Cardella, G., Favela, F., Martorana, N.S., Acosta, L., Auditore, L., Camaiani, A., De Filippo, E., Gelli, N., Geraci, E., Gnoffo, B., Guazzoni, C., Marin-Lambarri, J., Lanzalone, G., Maiolino, C., Lo Monaco, L., Nannini, A., Pagano, A., Pagano, E.V., Papa, M., Pirrone, S., et al.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - ELETTRONICO. - 1643:(2020), pp. 0-0. (27th International Nuclear Physics Conference ) [10.1088/1742-6596/1643/1/012145].
The gamma decay of the Hoyle and higher excitation energy states of C-12
Camaiani, A;Nannini, A;Pirrone, S;Politi, G;Quattrocchi, L;
2020
Abstract
The 0(2)(+) Hoyle state and few other excited levels of C-12 are fundamental for the production of carbon in the universe. In particular, the gamma decay branching ratio is of utmost importance, being the only way to produce a carbon at the ground state. For the purpose to precisely investigate the decay mechanism of such states we conducted an experiment, at Laboratori Nazionali del Sud-Istituto Nazionale di Fisica Nucleare (INFN-LNS), using the reaction alpha + C-12 at 64 MeV. We used the 4 pi CHIMERA detector to detect both alpha and gamma C-12 decay channels. Details of the experiment and preliminary results are discussed in the paper.
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