Emission of fragments in Ca+Ca reactions at 25 MeV/nucleon

Simone Santoro, Maiolino, Porto, Rizzo, Cardella, Pirrone, Russotto, Lanzalone, E La Guidara, Lombardo, Amorini, Loria, Acosta, Grassi, Giuliani, Minniti, Santoro, Buscemi, Han, PapaAuditore, Giuseppe Politi, Berceanu, Trifirò, Agodi, Trimarchi, Verde, E De Filippo, Vigilante, Anzalone, Rosato, Pagano, Chatterjee, Geraci

Risultato della ricerca: Articlepeer review

3 Citazioni (Scopus)


We discuss experimental data concerning 40,48Ca+ 40,48Ca reactions at 25 MeV/nucleon; the 4π multi-detector Chimera has been used as detection device. Effects that can be attributed to the neutron to proton ratios (N/Z) degree of freedom have been investigated. From the analysis of experimental data it seems that the neutron richness of the interacting system plays an important role on the evolution of fusion-like sources formed in semi-central collisions. In particular, it is observed that the larger is the neutron content and the larger is the emission of heavy residues. Experimental data have been compared with CoMD-II model calculations; a moderately stiff symmetry energy should be used to reproduce satisfactorily the data. A thermodynamical analysis on fusion-like sources has been also performed. In semi-peripheral collisions, isospin diffusion signals have been found. They have been investigated by analyzing isobaric emission ( 7Li/7Be) of quasi-projectile sources. Experimental data indicate that an incomplete N/Z mixing is reached during the interaction phase.
Lingua originaleEnglish
pagine (da-a)012094-
Numero di pagine8
Stato di pubblicazionePublished - 2013

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