Intermediate Mass Fragments production at low energy: reaction mechanism and isospin influence

oleh: Pirrone Sara, Politi Giuseppe, Gnoffo Brunilde, De Filippo Enrico, Russotto Paolo, Cardella Giuseppe, Geraci Elena, Lo Monaco Luigi, Martorana Nunzia Simona, Pagano Angelo, Pagano Emanuele Vincenzo, Piasecki Ernest, Rizzo Francesca, Russo Antonio, Trimarchi Marina

Format: Article
Diterbitkan: EDP Sciences 2019-01-01

Deskripsi

In this work, we present a recent study concerning the break-up of the Projectile-Like (PLF) into two fragments, following more violent deep-inelastic collisions in the reactions 78Kr + 40Ca and 86Kr + 48Ca at 10 A MeV, realized at INFN-Laboratori Nazionali del Sud by using the 4π multi detector CHIMERA. For these systems, we have already analyzed the fusion-evaporation and fission-like processes. A selection method has been developed, in order to discriminate PLF break up events from those due to other mechanisms which populate the same region of the phase- space. A preference for PLF aligned break-up, along the direction of the PLF-TLF separation axis with the light fragment emitted in the backward part, has been put in light, suggesting the presence of dynamical effects. Also a comparison between the neutron-rich 86Kr + 48Ca and neutron-poor 78Kr + 40Ca systems is presented, to put in evidence the isospin role in these processes.