Clustering effects in fusion evaporation reactions with light even-even N=Z nuclei. The 24Mg and 28Si cases
1 Dipartimento di Fisica e Astronomia dell’Università and INFN, Sezione di Bologna, Bologna, Italy
2 Dipartimento di Fisica dell’Università and INFN, sezione di Pavia, Pavia, Italy
3 CNRS, UMR6534, LPC, Caen, France and ENSICAEN, UMR6534, LPC, Caen, France
4 INFN, Laboratori Nazionali di Legnaro, Legnaro (Padova), Italy
5 University of Nevsehir, Science and Art Faculty, Physics Department, Nevsehir, Turkey
6 INFN, Sezione di Padova, Padova, Italy
7 Dipartimento di Fisica dell’Università and INFN, Sezione di Firenze, Firenze, Italy
a e-mail: firstname.lastname@example.org
Published online: 21 June 2016
In the recent years, cluster structures have been evidenced in many ground and excited states of light nuclei [1, 2]. The decay of highly excited states of 24Mg is studied in fusion evaporation events completely detected in charge in the reactions 12C+12C and 14N+10B at 95 and 80 MeV incident energy, respectively, and compared to the results of a pure statistical model [3, 4].
Inclusive variables are in general well reproduced by the model. We found clear deviations from the statistical model if we select emission channels involving multiple α particles which are more probable than expected from a purely statistical behavior. Data from 12C+12C reaction have been analyzed in order to study the decay of the Hoyle state of 12C* with two different selections: peripheral binary collisions and 6α decay channel in central events. To continue the investigation on light systems, we have recently measured the 16O+12C reaction at three different beam energies, namely Ebeam = 90, 110 and 130 MeV. Preliminary results are presented.
© The Authors, published by EDP Sciences, 2016
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