The Dynamical Dipole Radiation in Dissipative Collisions with Exotic Beams
arXiv:0711.3535 · doi:10.1142/S0218301308009604
Abstract
Heavy Ion Collisions (HIC) represent a unique tool to probe the in-medium nuclear interaction in regions away from saturation. In this work we present a selection of reaction observables in dissipative collisions particularly sensitive to the isovector part of the interaction, i.e. to the symmetry term of the nuclear Equation of State (EoS). At low energies the behavior of the symmetry energy around saturation influences dissipation and fragment production mechanisms. We will first discuss the recently observed Dynamical Dipole Radiation, due to a collective neutron-proton oscillation during the charge equilibration in fusion and deep-inelastic collisions. We will review in detail all the main properties, yield, spectrum, damping and angular distributions, revealing important isospin effects. Reactions induced by unstable 132Sn beams appear to be very promising tools to test the sub-saturation Isovector EoS. Predictions are also presented for deep-inelastic and fragmentation collisions induced by neutron rich projectiles. The importance of studying violent collisions with radioactive beams at low and Fermi energies is finally stressed.
10 pages, 6 figures, 14th Nuclear Physics Workshop, Kazimiers Dolny Sept. 07, Int.Jou.Modern Physics (2008) to appear
References in corpus (8)
- Reaction Dynamics with Exotic Beams
- Modelization of the EOS
- Quantum Calculation of Dipole Excitation in Fusion Reaction
- Neck fragmentation reaction mechanism
- Isospin Transport at Fermi Energies
- Collective Dipole Bremsstrahlung in Fusion Reactions
- The Dynamical Dipole Mode in Dissipative Heavy Ion Collisions
- IMF isotopic properties in semi-peripheral collisions at Fermi energies