Coupled collective motion in nuclear reactions

Abstract

In this paper, we review the roles of collective modes in nuclear reactions. We emphaize the strong couplings of various collective states with the monopole and quadrupole motions. In inelastic excitation, these couplings can be seen as an important source of anharmonicity in the multiphonon spectrum. In fusion reaction, the breathing and quadrupole motions strongly affects the oscillation of protons against neutrons. Finally, the modification of the collective properties induced by a large amplitude dilution might be the origin of the nuclear multifragmentation, directly related to the nuclear liquid-gas phase transition. In the three cases we derive a coupling matrix element which appears to be in good agreement.

References in corpus (2)

• Evidence for Spinodal Decomposition in Nuclear Multifragmentation
• Mechanical and chemical spinodal instabilities in finite quantum systems

Cited by in corpus (4)

• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions
• Fusion process studied with preequilibrium giant dipole resonance in time dependent Hartree-Fock theory
• Couplings between dipole and quadrupole vibrations in tin isotopes
• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions (2nd edition)