Data di Pubblicazione:
2014
Abstract:
The 12C+12 C reaction at 95MeV has been studied through the complete charge
identification of its products by means of the GARFIELD+ RCo experimental
set-up at INFN Laboratori Nazionali di Legnaro (LNL). In this paper, the first
of a series of two, a comparison to a dedicated Hauser–Feshbach calculation
allows selecting a set of dissipative events which corresponds, to a large extent,
to the statistical evaporation of highly excited 24 Mg. Information on the isotopic
distribution of the evaporation residues in coincidence with their complete
evaporation chain is also extracted. The set of data puts strong constraints on
the behaviour of the level density (LD) of light nuclei above the threshold
for particle emission. In particular, a fast increase of the LD parameter with
excitation energy is supported by the data. Residual deviations from a statistical
behaviour are seen in two specific channels, and tentatively associated with a
contamination from direct reactions and/or α -clustering effects. These channels
are studied in further details in the second paper of the series.
identification of its products by means of the GARFIELD+ RCo experimental
set-up at INFN Laboratori Nazionali di Legnaro (LNL). In this paper, the first
of a series of two, a comparison to a dedicated Hauser–Feshbach calculation
allows selecting a set of dissipative events which corresponds, to a large extent,
to the statistical evaporation of highly excited 24 Mg. Information on the isotopic
distribution of the evaporation residues in coincidence with their complete
evaporation chain is also extracted. The set of data puts strong constraints on
the behaviour of the level density (LD) of light nuclei above the threshold
for particle emission. In particular, a fast increase of the LD parameter with
excitation energy is supported by the data. Residual deviations from a statistical
behaviour are seen in two specific channels, and tentatively associated with a
contamination from direct reactions and/or α -clustering effects. These channels
are studied in further details in the second paper of the series.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
E = 95 AMeV; measured fusion-evaporation reactions; nuclear reactions 12C(12C, X); observed deviation from statistical behaviour; Nuclear and High Energy Physics
Elenco autori:
Morelli, L.; Baiocco, G.; D'Agostino, M.; Gulminelli, F.; Bruno, M.; Abbondanno, U.; Appannababu, S.; Barlini, S.; Bini, M.; Casini, G.; Cinausero, M.; Degerlier, M.; Fabris, D.; Gelli, N.; Gramegna, F.; Kravchuk, V. L.; Marchi, T.; Olmi, A.; Pasquali, G.; Piantelli, S.; Valdré, S.; Raduta, Ad R
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