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. The comparison of light charged particles measured spectra with statistical model predictions suggests that the dominant reaction mechanism is compound nucleus (CN) formation and decay. However, in both reactions, a discrepancy with statistical expectations is found for α particles detected in coincidence with Carbon, Oxigen and Neon residues. The comparison between the two reactions shows that this discrepancy is only partly explained by an entrance channel effect. Evidence for cluster correlations in excited 24Mg CN is suggested by the comparison between the measured and calculated branching ratios for the channels involving α particles.

Cluster correlation effects in 12C+12C and 14N+10B fusion-evaporation reactions / Morelli, L.; Baiocco, G.; D'Agostino, M.; Gulminelli, F.; Bruno, M.; Cinausero, M.; Degerlier, M.; Fabris, D.; Gramegna, F.; Marchi, T.; Barlini, S.; Bini, M.; Casini, G.; Gelli, N.; Olmi, A.; Pasquali, G.; Piantelli, S.; Valdre, S.. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - STAMPA. - 88:(2015), pp. 00026-00032. (Intervento presentato al convegno 1st International Workshop on Multi Facets of EoS and Clustering, IWM-EC 2014 tenutosi a Dipartimento di Fisica e Astronomia and Laboratori Nazionali del Sud, ita nel 2014) [10.1051/epjconf/20158800026].

Cluster correlation effects in 12C+12C and 14N+10B fusion-evaporation reactions

BARLINI, SANDRO;BINI, MAURIZIO;OLMI, ALESSANDRO;PASQUALI, GABRIELE;VALDRE', SIMONE
2015

Abstract

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. The comparison of light charged particles measured spectra with statistical model predictions suggests that the dominant reaction mechanism is compound nucleus (CN) formation and decay. However, in both reactions, a discrepancy with statistical expectations is found for α particles detected in coincidence with Carbon, Oxigen and Neon residues. The comparison between the two reactions shows that this discrepancy is only partly explained by an entrance channel effect. Evidence for cluster correlations in excited 24Mg CN is suggested by the comparison between the measured and calculated branching ratios for the channels involving α particles.
2015
EPJ Web of Conferences
1st International Workshop on Multi Facets of EoS and Clustering, IWM-EC 2014
Dipartimento di Fisica e Astronomia and Laboratori Nazionali del Sud, ita
2014
Morelli, L.; Baiocco, G.; D'Agostino, M.; Gulminelli, F.; Bruno, M.; Cinausero, M.; Degerlier, M.; Fabris, D.; Gramegna, F.; Marchi, T.; Barlini, S.; ...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1065256
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