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EnglishWe discuss experimental data concerning Ca-48+Ca-48 and Ca-42+Fe-54 reactions at 25 MeV/nucleon obtained by using the 47 multi-detector Chimera. Effects due due to the different neutron to proton ratios (N/Z) of the two systems have been investigated. Charge distributions of forwardly emitted fragments show even-odd staggering whose amplitude is larger for the neutron poor system. Moreover, the neutron excess of the total system influence the evolution of fusion-like sources formed in semi-central collisions. In particular, for the neutron rich system, the relative emission yield of heavy residues is larger, while multi-fragmentation and binary-like events prevail in the neutron poor system.
We discuss experimental data concerning Ca-48+Ca-48 and Ca-42+Fe-54 reactions at 25 MeV/nucleon obtained by using the 47 multi-detector Chimera. Effects due due to the different neutron to proton ratios (N/Z) of the two systems have been investigated. Charge distributions of forwardly emitted fragments show even-odd staggering whose amplitude is larger for the neutron poor system. Moreover, the neutron excess of the total system influence the evolution of fusion-like sources formed in semi-central collisions. In particular, for the neutron rich system, the relative emission yield of heavy residues is larger, while multi-fragmentation and binary-like events prevail in the neutron poor system.
| Titolo: | Entrance channel effects in medium mass nuclear systems at 25 MeV/nucleon |
| Autori interni: | |
| Data di pubblicazione: | 2014 |
| Rivista: | |
| Citazione: | Entrance channel effects in medium mass nuclear systems at 25 MeV/nucleon / Lombardo I; Acosta L; Agodi C; Amorini F; Anzalone A; Auditore L; Berceanu I; Cardella G; Chatterjee MB; De Filippo E; Geraci E; Giuliani G; Grassi L; Han J; La Guidara E; Lanzalone G; Loria D; Maiolino C; Minniti T; Pagano A; Papa M; Pirrone S; Politi G; Porto F; Rizzo F; Rosato E; Russotto P; Trifiro A; Trimarchi M; Verde G; Vigilante M. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 515(2014). |
| Abstract: | We discuss experimental data concerning Ca-48+Ca-48 and Ca-42+Fe-54 reactions at 25 MeV/nucleon obtained by using the 47 multi-detector Chimera. Effects due due to the different neutron to proton ratios (N/Z) of the two systems have been investigated. Charge distributions of forwardly emitted fragments show even-odd staggering whose amplitude is larger for the neutron poor system. Moreover, the neutron excess of the total system influence the evolution of fusion-like sources formed in semi-central collisions. In particular, for the neutron rich system, the relative emission yield of heavy residues is larger, while multi-fragmentation and binary-like events prevail in the neutron poor system. |
| Handle: | http://hdl.handle.net/20.500.11769/38947 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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