Exotic break-up modes in heavy ion reactions at low energies
Carmelo J. RizzoINFN-LNS, Laboratori Nazionali del Sud, 95123 Catania, ItalyM. ColonnaINFN-LNS, Laboratori Nazionali del Sud, 95123 Catania, ItalyV. BaranFaculty of Physics, University of Bucharest, 077125 Bucharest, RomaniaM. Di ToroINFN-LNS, Laboratori Nazionali del Sud, 95123 Catania, Italy
2014en
ABI
Abstract
New reaction mechanisms occurring in heavy ion collisions at low energy (10--30 MeV/nucleon) are investigated within the stochastic mean field model. We concentrate on the analysis of ternary breakup events, of dynamical origin, occurring in semicentral reactions, where the formation of excited systems in various conditions of shape and angular momentum is observed. We show how this fragmentation mode may emerge from the combined action of surface (neck) instabilities and angular momentum effects. Interesting perspectives on this mechanism in neutron-rich (or exotic) systems are developing, with the possibility of accessing information on the low-density behavior of the nuclear symmetry energy.
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Cited by 20 references