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arXiv · 1003.2036

Break-up mechanisms in heavy ion collisions at low energies

L. Shvedov·M. Colonna·M. Di Toro
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Abstract

We investigate reaction mechanisms occurring in heavy ion collisions at low energy (around 20 MeV/u). In particular, we focus on the competition between fusion and break-up processes (Deep-Inelastic and fragmentation) in semi-peripheral collisions, where the formation of excited systems in various conditions of shape and angular momentum is observed. Adopting a Langevin treatment for the dynamical evolution of the system configuration, described in terms of shape observables such as quadrupole and octupole moments, we derive fusion/fission probabilities, from which one can finally evaluate the corresponding fusion and break-up cross sections. The dependence of the results on shape, angular momentum and excitation energy is discussed.

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L. Shvedov, M. Colonna, M. Di Toro. 2010-03-10. Break-up mechanisms in heavy ion collisions at low energies. https://doi.org/10.1103/physrevc.81.054605

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